--- a/third_party/webrtc/modules/desktop_capture/screen_capturer_x11.cc
+++ b/third_party/webrtc/modules/desktop_capture/screen_capturer_x11.cc
@@ -412,7 +412,7 @@ std::unique_ptr<DesktopCapturer> Desktop
     return nullptr;
   }
 
-  return capturer;
+  return std::move(capturer);
 }
 
 }  // namespace webrtc
