diff --git a/AFNetworking/AFHTTPClient.h b/AFNetworking/AFHTTPClient.h
index 9c64687..d1c6f73 100644
--- a/AFNetworking/AFHTTPClient.h
+++ b/AFNetworking/AFHTTPClient.h
@@ -554,7 +554,7 @@ extern NSTimeInterval const kAFUploadStream3GSuggestedDelay;
 
  @param data The data to be encoded and appended to the form data.
  @param name The name to be associated with the specified data. This parameter must not be `nil`.
- @param filename The filename to be associated with the specified data. This parameter must not be `nil`.
+ @param fileName The filename to be associated with the specified data. This parameter must not be `nil`.
  @param mimeType The MIME type of the specified data. (For example, the MIME type for a JPEG image is image/jpeg.) For a list of valid MIME types, see http://www.iana.org/assignments/media-types/. This parameter must not be `nil`.
  */
 - (void)appendPartWithFileData:(NSData *)data