diff --git a/types/crypto-js/crypto-js-tests.ts b/types/crypto-js/crypto-js-tests.ts
index c36def9f90..9b5dd1be6f 100644
--- a/types/crypto-js/crypto-js-tests.ts
+++ b/types/crypto-js/crypto-js-tests.ts
@@ -11,6 +11,10 @@ wordArray = CryptoJS.SHA1('some message', 'some key', { any: true });
 wordArray = CryptoJS.format.OpenSSL('some message');
 wordArray = CryptoJS.format.OpenSSL('some message', 'some key');
 
+var FR = new FileReader();
+FR.onloadend = () => {
+	var hash = CryptoJS.SHA1(CryptoJS.lib.WordArray.create(FR.result)).toString()
+}
 
 // Ciphers
 var encrypted: CryptoJS.WordArray;
diff --git a/types/crypto-js/index.d.ts b/types/crypto-js/index.d.ts
index 8e80c74a07..4e35dfbdfb 100644
--- a/types/crypto-js/index.d.ts
+++ b/types/crypto-js/index.d.ts
@@ -8,7 +8,7 @@ export as namespace CryptoJS;
 
 declare var CryptoJS: CryptoJS.Hashes;
 declare namespace CryptoJS {
-	type Hash = (message: string, key?: string, ...options: any[]) => WordArray;
+	type Hash = (message: string | LibWordArray, key?: string, ...options: any[]) => WordArray;
 	interface Cipher {
 		encrypt(message: string, secretPassphrase: string, option?: CipherOption): WordArray;
 		decrypt(encryptedMessage: string | WordArray, secretPassphrase: string, option?: CipherOption): DecryptedMessage;
@@ -25,6 +25,10 @@ declare namespace CryptoJS {
 		process(messagePart: string): string;
 		finalize(): string;
 	}
+	interface LibWordArray {
+		sigBytes: number,
+		words: number[],
+	}
 	export interface WordArray {
 		iv: string;
 		salt: string;
@@ -97,6 +101,11 @@ declare namespace CryptoJS {
 			Utf16LE: Encoder;
 			Base64: Encoder;
 		};
+		lib: {
+			WordArray: {
+				create: (v: any) => LibWordArray;
+			};
+		};
 		mode: {
 			CBC: Mode;
 			CFB: Mode;