diff --git a/webrtc/modules/video_capture/main/source/Mac/QTKit/video_capture_qtkit.mm b/webrtc/modules/video_capture/main/source/Mac/QTKit/video_capture_qtkit.mm
index 93494d877..77284daa1 100644
--- a/webrtc/modules/video_capture/main/source/Mac/QTKit/video_capture_qtkit.mm
+++ b/webrtc/modules/video_capture/main/source/Mac/QTKit/video_capture_qtkit.mm
@@ -95,7 +95,8 @@ WebRtc_Word32 VideoCaptureMacQTKit::Init(
     _captureInfo = [[VideoCaptureMacQTKitInfoObjC alloc]init];
     if(nil == _captureInfo)
     {
-        WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoCapture, id, "Failed to create an instance of VideoCaptureMacQTKitInfoObjC");
+        WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoCapture, id,
+        "Failed to create an instance of VideoCaptureMacQTKitInfoObjC");
         return -1;
     }
 
@@ -154,7 +155,8 @@ WebRtc_Word32 VideoCaptureMacQTKit::Init(
         WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceVideoCapture, _id,
                      "Failed to set capture device %s (unique ID %s) even "
                      "though it was a valid return from "
-                     "VideoCaptureMacQTKitInfo");
+                     "VideoCaptureMacQTKitInfo", deviceNameUTF8,
+                     iDeviceUniqueIdUTF8);
         return -1;
     }