diff --git a/lib/src/mediadevices_impl.dart b/lib/src/mediadevices_impl.dart
index e04a600..a7d9192 100644
--- a/lib/src/mediadevices_impl.dart
+++ b/lib/src/mediadevices_impl.dart
@@ -20,14 +20,13 @@ class MediaDevicesWeb extends MediaDevices {
             mediaConstraints['video'].remove('facingMode');
           }
         }
+        mediaConstraints.putIfAbsent('video', () => false);
+        mediaConstraints.putIfAbsent('audio', () => false);
       } catch (e) {
         print(
             '[getUserMedia] failed to remove facingMode from mediaConstraints');
       }
 
-      mediaConstraints.putIfAbsent('video', () => false);
-      mediaConstraints.putIfAbsent('audio', () => false);
-
       final mediaDevices = web.window.navigator.mediaDevices;
 
       if (jsutil.hasProperty(mediaDevices, 'getUserMedia')) {