diff --git a/NSString+Base64.h b/NSString+Base64.h
index 11915a9..c5a730d 100644
--- a/NSString+Base64.h
+++ b/NSString+Base64.h
@@ -7,6 +7,7 @@
 //
 
 #import <Foundation/NSString.h>
+#import <Foundation/NSData.h>
 
 @interface NSString (Base64Additions)
 
diff --git a/README.md b/README.md
index 38c795d..0e5d97f 100644
--- a/README.md
+++ b/README.md
@@ -25,6 +25,10 @@ Decrypting
 
     NSString *message = [AESCrypt decrypt:encryptedData password:password];
 
+## Demo
+
+Using swift at https://github.com/datomnurdin/RevivalxSwiftAESCrypt
+
 ## Common sense
 
 AESCrypt includes Base64 and Crypto extensions for NSData and NSString classes. If you're already using an extension that provides these, there is no need to use the included classes. Change the code in the AESCrypt class to correspond to your existing implementation of these extensions.