--- a/media/webrtc/trunk/webrtc/modules/video_capture/mac/avfoundation/video_capture_avfoundation_objc.mm
+++ b/media/webrtc/trunk/webrtc/modules/video_capture/mac/avfoundation/video_capture_avfoundation_objc.mm
@@ -147,17 +147,17 @@ using namespace videocapturemodule;
     AVCaptureConnection* captureConnection =
       [_captureVideoDataOutput connectionWithMediaType:AVMediaTypeVideo];
 
     if ([captureConnection isVideoMinFrameDurationSupported]) {
       [captureConnection setVideoMinFrameDuration:bestFrameRateRange.minFrameDuration];
     }
 
     if ([captureConnection isVideoMaxFrameDurationSupported]) {
-      [captureConnection setVideoMaxFrameDuration:bestFrameRateRange.maxFrameDuration];
+      [captureConnection setVideoMaxFrameDuration:bestFrameRateRange.minFrameDuration];
     }
   }
 }
 
 - (void)startCapture {
   if (_capturing)
     return;