diff --git a/lib/lib.es5.d.ts b/lib/lib.es5.d.ts
index d1a9d6f0d2a..82d13bf3f17 100644
--- a/lib/lib.es5.d.ts
+++ b/lib/lib.es5.d.ts
@@ -1046,14 +1046,14 @@ interface JSON {
       * @param reviver A function that transforms the results. This function is called for each member of the object.
       * If a member contains nested objects, the nested objects are transformed before the parent object is.
       */
-    parse(text: string, reviver?: (key: any, value: any) => any): any;
+    parse(text: string, reviver?: (this : any, key: string, value: any) => any): any;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.
       * @param replacer A function that transforms the results.
       * @param space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
       */
-    stringify(value: any, replacer?: (key: string, value: any) => any, space?: string | number): string;
+    stringify(value: any, replacer?: (this : any, key: string, value: any) => any, space?: string | number): string;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.
diff --git a/src/lib/es5.d.ts b/src/lib/es5.d.ts
index c8e99f0d1db..2da00df5a60 100644
--- a/src/lib/es5.d.ts
+++ b/src/lib/es5.d.ts
@@ -1026,14 +1026,14 @@ interface JSON {
       * @param reviver A function that transforms the results. This function is called for each member of the object.
       * If a member contains nested objects, the nested objects are transformed before the parent object is.
       */
-    parse(text: string, reviver?: (key: any, value: any) => any): any;
+    parse(text: string, reviver?: (this : any, key: string, value: any) => any): any;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.
       * @param replacer A function that transforms the results.
       * @param space Adds indentation, white space, and line break characters to the return-value JSON text to make it easier to read.
       */
-    stringify(value: any, replacer?: (key: string, value: any) => any, space?: string | number): string;
+    stringify(value: any, replacer?: (this : any, key: string, value: any) => any, space?: string | number): string;
     /**
       * Converts a JavaScript value to a JavaScript Object Notation (JSON) string.
       * @param value A JavaScript value, usually an object or array, to be converted.