diff --git a/types/readline-transform/index.d.ts b/types/readline-transform/index.d.ts
index ec1ce8b56c..4bfb24a575 100644
--- a/types/readline-transform/index.d.ts
+++ b/types/readline-transform/index.d.ts
@@ -7,15 +7,19 @@
 
 import { Transform, TransformOptions } from 'stream';
 
-export interface ReadlineTransformOptions extends TransformOptions {
-  /** line break matcher for str.split() (default: /\r?\n/) */
-  breakMatcher?: RegExp;
-  /** if content ends with line break, ignore last empty line (default: true) */
-  ignoreEndOfBreak?: boolean;
-  /** if line is empty string, skip it (default: false) */
-  skipEmpty?: boolean;
+declare namespace ReadlineTransform {
+    interface Options extends TransformOptions {
+    /** line break matcher for str.split() (default: /\r?\n/) */
+    breakMatcher?: RegExp;
+    /** if content ends with line break, ignore last empty line (default: true) */
+    ignoreEndOfBreak?: boolean;
+    /** if line is empty string, skip it (default: false) */
+    skipEmpty?: boolean;
+    }
 }
 
-export default class ReadlineTransform extends Transform {
-  constructor(options?: ReadlineTransformOptions);
+declare class ReadlineTransform extends Transform {
+  constructor(options?: ReadlineTransform.Options);
 }
+
+export = ReadlineTransform;
diff --git a/types/readline-transform/readline-transform-tests.ts b/types/readline-transform/readline-transform-tests.ts
index 9c343bd352..fc2b3e0e3a 100644
--- a/types/readline-transform/readline-transform-tests.ts
+++ b/types/readline-transform/readline-transform-tests.ts
@@ -1,5 +1,5 @@
 import { PassThrough } from 'stream';
-import ReadlineTransform from 'readline-transform';
+import ReadlineTransform = require('readline-transform');
 
 const readStream = new PassThrough();
 const transform = new ReadlineTransform({
diff --git a/types/readline-transform/tsconfig.json b/types/readline-transform/tsconfig.json
index 4bf70a9d30..2e76497489 100644
--- a/types/readline-transform/tsconfig.json
+++ b/types/readline-transform/tsconfig.json
@@ -20,4 +20,4 @@
         "index.d.ts",
         "readline-transform-tests.ts"
     ]
-}
\ No newline at end of file
+}