diff --git a/types/redux-form/index.d.ts b/types/redux-form/index.d.ts
index 336ab9ade4..6ba9b9e0f6 100644
--- a/types/redux-form/index.d.ts
+++ b/types/redux-form/index.d.ts
@@ -8,9 +8,9 @@
 //                 Anton Novik <https://github.com/tehbi4>
 //                 Huw Martin <https://github.com/huwmartin>
 //                 Tim de Koning <https://github.com/reggino>
+//                 Maddi Joyce <https://github.com/maddijoyce>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.6
-
 import {
   ComponentClass,
   StatelessComponent,
diff --git a/types/redux-form/lib/reduxForm.d.ts b/types/redux-form/lib/reduxForm.d.ts
index 128845f08f..07f8e197ca 100644
--- a/types/redux-form/lib/reduxForm.d.ts
+++ b/types/redux-form/lib/reduxForm.d.ts
@@ -20,6 +20,7 @@ import {
 export type FormSubmitHandler<FormData = {}, P = {}> =
     (values: FormData, dispatch: Dispatch<any>, props: P) => void | FormErrors<FormData> | Promise<any>;
 
+export type GetFormState = (state: any) => FormStateMap;
 export interface SubmitHandler<FormData = {}, P = {}> {
     (
         submit: FormSubmitHandler<FormData, P>,
@@ -105,7 +106,7 @@ export interface ConfigProps<FormData = {}, P = {}> {
     destroyOnUnmount?: boolean;
     enableReinitialize?: boolean;
     forceUnregisterOnUnmount?: boolean;
-    getFormState?(state: any): FormStateMap;
+    getFormState?: GetFormState;
     immutableProps?: string[];
     initialValues?: Partial<FormData>;
     keepDirtyOnReinitialize?: boolean;
diff --git a/types/redux-form/lib/selectors.d.ts b/types/redux-form/lib/selectors.d.ts
index 4d224b5b82..eea4444275 100644
--- a/types/redux-form/lib/selectors.d.ts
+++ b/types/redux-form/lib/selectors.d.ts
@@ -1,8 +1,9 @@
-import { FormErrors } from "../index";
+import { FormErrors, GetFormState } from "../index";
 
-export type DataSelector<FormData = {}, State = {}> = (formName: string) => (state: State) => FormData;
-export type ErrorSelector<FormData = {}, State = {}> = (formName: string) => (state: State) => FormErrors<FormData>;
-export type BooleanSelector<State = {}> = (formName: string) => (state: State) => boolean;
+export type DataSelector<FormData = {}, State = {}> = (formName: string, getFormState?: GetFormState) => (state: State) => FormData;
+export type ErrorSelector<FormData = {}, State = {}> = (formName: string, getFormState?: GetFormState) => (state: State) => FormErrors<FormData>;
+export type BooleanSelector<State = {}> = (formName: string, getFormState?: GetFormState) => (state: State) => boolean;
+export type NamesSelector<State = {}> = (getFormState?: GetFormState) => (state: State) => string[];
 
 export const getFormValues: DataSelector;
 export const getFormInitialValues: DataSelector;
@@ -12,7 +13,7 @@ export const getFormAsyncErrors: ErrorSelector;
 export const getFormSyncWarnings: ErrorSelector;
 export const getFormSubmitErrors: ErrorSelector;
 export const getFormError: ErrorSelector;
-export function getFormNames(state: any): string[];
+export const getFormNames: NamesSelector;
 export const isDirty: BooleanSelector;
 export const isPristine: BooleanSelector;
 export const isValid: BooleanSelector;