diff --git a/src/ios/CDVFileTransfer.m b/src/ios/CDVFileTransfer.m
index f19bece..1e62438 100644
--- a/src/ios/CDVFileTransfer.m
+++ b/src/ios/CDVFileTransfer.m
@@ -58,7 +58,7 @@ static CFIndex WriteDataToStream(NSData* data, CFWriteStreamRef stream)
                 bytesToWrite - totalBytesWritten);
         if (result < 0) {
             CFStreamError error = CFWriteStreamGetError(stream);
-            NSLog(@"WriteStreamError domain: %ld error: %ld", error.domain, error.error);
+            NSLog(@"WriteStreamError domain: %ld error: %ld", error.domain, (long)error.error);
             return result;
         } else if (result == 0) {
             return result;
@@ -207,7 +207,7 @@ static CFIndex WriteDataToStream(NSData* data, CFWriteStreamRef stream)
     if (mimeType != nil) {
         [postBodyBeforeFile appendData:[[NSString stringWithFormat:@"Content-Type: %@\r\n", mimeType] dataUsingEncoding:NSUTF8StringEncoding]];
     }
-    [postBodyBeforeFile appendData:[[NSString stringWithFormat:@"Content-Length: %d\r\n\r\n", [fileData length]] dataUsingEncoding:NSUTF8StringEncoding]];
+    [postBodyBeforeFile appendData:[[NSString stringWithFormat:@"Content-Length: %ld\r\n\r\n", (long)[fileData length]] dataUsingEncoding:NSUTF8StringEncoding]];
 
     DLog(@"fileData length: %d", [fileData length]);
     NSData* postBodyAfterFile = [[NSString stringWithFormat:@"\r\n--%@--\r\n", kFormBoundary] dataUsingEncoding:NSUTF8StringEncoding];