diff --git a/types/hummus-recipe/hummus-recipe-tests.ts b/types/hummus-recipe/hummus-recipe-tests.ts
index 7635dbbce1..062700c8be 100644
--- a/types/hummus-recipe/hummus-recipe-tests.ts
+++ b/types/hummus-recipe/hummus-recipe-tests.ts
@@ -1,4 +1,4 @@
-import { Recipe } from 'hummus-recipe';
+import Recipe = require("hummus-recipe");
 
 // $ExpectType Recipe
 const pdf = new Recipe("new", "test.pdf", {
diff --git a/types/hummus-recipe/index.d.ts b/types/hummus-recipe/index.d.ts
index 3b3a47d5a2..7c6aa54fb7 100644
--- a/types/hummus-recipe/index.d.ts
+++ b/types/hummus-recipe/index.d.ts
@@ -4,20 +4,8 @@
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.1
 
-export interface RecipeOptions {
-    version?: number;
-    author?: string;
-    title?: string;
-    subject?: string;
-    keywords?: string[];
-}
-
-export interface CommentOptions {
-    title?: string;
-    date?: string;
-    open?: boolean;
-    richText?: boolean;
-    flag?:
+declare namespace Recipe {
+    type CommentOptionsFlag =
         | "invisible"
         | "hidden"
         | "print"
@@ -27,13 +15,26 @@ export interface CommentOptions {
         | "readonly"
         | "locked"
         | "togglenoview";
-}
 
-export interface AnotOptions {
-    title?: string;
-    open?: boolean;
-    richText?: boolean;
-    flag?:
+    type AnnotSubtype =
+        | "Text"
+        | "FreeText"
+        | "Line"
+        | "Square"
+        | "Circle"
+        | "Polygon"
+        | "PolyLine"
+        | "Highlight"
+        | "Underline"
+        | "Squiggly"
+        | "StrikeOut"
+        | "Stamp"
+        | "Caret"
+        | "Ink"
+        | "FileAttachment"
+        | "Sound";
+
+    type AnnotOptionsFlag =
         | "invisible"
         | "hidden"
         | "print"
@@ -43,7 +44,8 @@ export interface AnotOptions {
         | "readonly"
         | "locked"
         | "togglenoview";
-    icon?:
+
+    type AnnotOptionsIcon =
         | "Comment"
         | "Key"
         | "Note"
@@ -51,159 +53,172 @@ export interface AnotOptions {
         | "NewParagraph"
         | "Paragraph"
         | "Insert";
-    width?: number;
-    height?: number;
+
+    interface RecipeOptions {
+        version?: number;
+        author?: string;
+        title?: string;
+        subject?: string;
+        keywords?: string[];
+    }
+
+    interface CommentOptions {
+        title?: string;
+        date?: string;
+        open?: boolean;
+        richText?: boolean;
+        flag?: CommentOptionsFlag;
+    }
+
+    interface AnnotOptions {
+        title?: string;
+        open?: boolean;
+        richText?: boolean;
+        flag?: AnnotOptionsFlag;
+        icon?: AnnotOptionsIcon;
+        width?: number;
+        height?: number;
+    }
+
+    interface EncryptOptions {
+        password?: string;
+        ownerPassword?: string;
+        userProtectionFlag?: number;
+    }
+
+    interface ImageOptions {
+        width?: number;
+        height?: number;
+        scale?: number;
+        keepAspectRatio?: boolean;
+        opacity?: number;
+        align?: string;
+    }
+
+    interface InfoOptions {
+        version?: string;
+        author?: string;
+        title?: string;
+        subject?: string;
+        keywords?: string[];
+    }
+
+    interface OverlayOptions {
+        scale?: number;
+        keepAspectRatio?: boolean;
+        fitWidth?: boolean;
+        fitHeight?: boolean;
+    }
+
+    interface TextBoxStyle {
+        lineWidth?: number;
+        stroke?: string | number[];
+        dash?: number[];
+        fill?: string | number[];
+        opacity?: number;
+    }
+
+    interface TextBox {
+        width?: number;
+        height?: number;
+        minHeight?: number;
+        padding?: number | number[];
+        lineHeight?: number;
+        textAlign?: string;
+        style?: TextBoxStyle;
+    }
+
+    interface TextOptions {
+        color?: string | number[];
+        opacity?: number;
+        rotation?: number;
+        rotationOrigin?: number[];
+        font?: string;
+        size?: number;
+        align?: string;
+        highlight?: boolean;
+        underline?: boolean;
+        strikeOut?: boolean;
+        textBox?: TextBox;
+    }
+
+    interface LineToOptions {
+        color?: string | number[];
+        stroke?: string | number[];
+        fill?: string | number[];
+        lineWidth?: number;
+        opacity?: number;
+        dash?: number[];
+    }
+
+    interface LineOptions {
+        color?: string | number[];
+        stroke?: string | number[];
+        lineWidth?: number;
+        dash?: number[];
+    }
+
+    interface PolygonOptions {
+        color?: string | number[];
+        stroke?: string | number[];
+        fill?: string | number[];
+        lineWidth?: number;
+        opacity?: number;
+        dash?: number[];
+    }
+
+    interface CircleOptions {
+        color?: string | number[];
+        stroke?: string | number[];
+        fill?: string | number[];
+        lineWidth?: number;
+        opacity?: number;
+        dash?: number[];
+    }
+
+    interface RectangleOptions {
+        color?: string | number[];
+        stroke?: string | number[];
+        fill?: string | number[];
+        lineWidth?: number;
+        opacity?: number;
+        dash?: number[];
+        rotation?: number;
+        rotationOrigin?: number[];
+    }
 }
 
-export interface EncryptOptions {
-    password?: string;
-    ownerPassword?: string;
-    userProtectionFlag?: number;
-}
-
-export interface ImageOptions {
-    width?: number;
-    height?: number;
-    scale?: number;
-    keepAspectRatio?: boolean;
-    opacity?: number;
-    align?: string;
-}
-
-export interface InfoOptions {
-    version?: string;
-    author?: string;
-    title?: string;
-    subject?: string;
-    keywords?: string[];
-}
-
-export interface OverlayOptions {
-    scale?: number;
-    keepAspectRatio?: boolean;
-    fitWidth?: boolean;
-    fitHeight?: boolean;
-}
-
-export interface TextBoxStyle {
-    lineWidth?: number;
-    stroke?: string | number[];
-    dash?: number[];
-    fill?: string | number[];
-    opacity?: number;
-}
-
-export interface TextBox {
-    width?: number;
-    height?: number;
-    minHeight?: number;
-    padding?: number | number[];
-    lineHeight?: number;
-    textAlign?: string;
-    style?: TextBoxStyle;
-}
-
-export interface TextOptions {
-    color?: string | number[];
-    opacity?: number;
-    rotation?: number;
-    rotationOrigin?: number[];
-    font?: string;
-    size?: number;
-    align?: string;
-    highlight?: boolean;
-    underline?: boolean;
-    strikeOut?: boolean;
-    textBox?: TextBox;
-}
-
-export interface LineToOptions {
-    color?: string | number[];
-    stroke?: string | number[];
-    fill?: string | number[];
-    lineWidth?: number;
-    opacity?: number;
-    dash?: number[];
-}
-
-export interface LineOptions {
-    color?: string | number[];
-    stroke?: string | number[];
-    lineWidth?: number;
-    dash?: number[];
-}
-
-export interface PolygonOptions {
-    color?: string | number[];
-    stroke?: string | number[];
-    fill?: string | number[];
-    lineWidth?: number;
-    opacity?: number;
-    dash?: number[];
-}
-
-export interface CircleOptions {
-    color?: string | number[];
-    stroke?: string | number[];
-    fill?: string | number[];
-    lineWidth?: number;
-    opacity?: number;
-    dash?: number[];
-}
-
-export interface RectangleOptions {
-    color?: string | number[];
-    stroke?: string | number[];
-    fill?: string | number[];
-    lineWidth?: number;
-    opacity?: number;
-    dash?: number[];
-    rotation?: number;
-    rotationOrigin?: number[];
-}
-
-export class Recipe {
-    constructor(src: string, output: string, options?: RecipeOptions);
+declare class Recipe {
+    constructor(src: string, output: string, options?: Recipe.RecipeOptions);
 
     comment(
         text: string,
         x: number,
         y: number,
-        options?: CommentOptions
+        options?: Recipe.CommentOptions
     ): Recipe;
 
     annot(
         x: number,
         y: number,
-        subtype:
-            | "Text"
-            | "FreeText"
-            | "Line"
-            | "Square"
-            | "Circle"
-            | "Polygon"
-            | "PolyLine"
-            | "Highlight"
-            | "Underline"
-            | "Squiggly"
-            | "StrikeOut"
-            | "Stamp"
-            | "Caret"
-            | "Ink"
-            | "FileAttachment"
-            | "Sound",
-        options?: AnotOptions
+        subtype: Recipe.AnnotSubtype,
+        options?: Recipe.AnnotOptions
     ): Recipe;
 
     appendPage(pdfSrc: string, pages: number | number[]): Recipe;
 
-    encrypt(options: EncryptOptions): Recipe;
+    encrypt(options: Recipe.EncryptOptions): Recipe;
 
     registerFont(fontName: string, fontSrcPath: string): Recipe;
 
-    image(imgSrc: string, x: number, y: number, options?: ImageOptions): Recipe;
+    image(
+        imgSrc: string,
+        x: number,
+        y: number,
+        options?: Recipe.ImageOptions
+    ): Recipe;
 
-    info(options?: InfoOptions): Recipe;
+    info(options?: Recipe.InfoOptions): Recipe;
 
     custom(key?: string, value?: string): Recipe;
 
@@ -217,7 +232,7 @@ export class Recipe {
         pdfSrc: string,
         x: number,
         y: number,
-        options?: OverlayOptions
+        options?: Recipe.OverlayOptions
     ): Recipe;
 
     createPage(pageWidth: number, pageHeight: number): Recipe;
@@ -230,21 +245,26 @@ export class Recipe {
 
     split(outputDir: string, prefix: string): Recipe;
 
-    text(text: string, x: number, y: number, options?: TextOptions): Recipe;
+    text(
+        text: string,
+        x: number,
+        y: number,
+        options?: Recipe.TextOptions
+    ): Recipe;
 
     moveTo(x: number, y: number): Recipe;
 
-    lineTo(x: number, y: number, options?: LineToOptions): Recipe;
+    lineTo(x: number, y: number, options?: Recipe.LineToOptions): Recipe;
 
-    line(coordinates: number[], options?: LineOptions): Recipe;
+    line(coordinates: number[][], options?: Recipe.LineOptions): Recipe;
 
-    polygon(coordinates: number[][], options?: PolygonOptions): Recipe;
+    polygon(coordinates: number[][], options?: Recipe.PolygonOptions): Recipe;
 
     circle(
         x: number,
         y: number,
         radius: number,
-        options?: CircleOptions
+        options?: Recipe.CircleOptions
     ): Recipe;
 
     rectangle(
@@ -252,8 +272,10 @@ export class Recipe {
         y: number,
         width: number,
         height: number,
-        options?: RectangleOptions
+        options?: Recipe.RectangleOptions
     ): Recipe;
 
     endPDF(callback?: () => any): Recipe;
 }
+
+export = Recipe;