diff --git a/demos/gl/src/main/java/com/google/android/exoplayer2/gldemo/BitmapOverlayVideoProcessor.java b/demos/gl/src/main/java/com/google/android/exoplayer2/gldemo/BitmapOverlayVideoProcessor.java
index 89bea32581..02399ba86c 100644
--- a/demos/gl/src/main/java/com/google/android/exoplayer2/gldemo/BitmapOverlayVideoProcessor.java
+++ b/demos/gl/src/main/java/com/google/android/exoplayer2/gldemo/BitmapOverlayVideoProcessor.java
@@ -140,6 +140,7 @@ import javax.microedition.khronos.opengles.GL10;
         case "scaleY":
           uniform.setFloat(bitmapScaleY);
           break;
+        default: // fall out
       }
     }
     for (GlUtil.Attribute copyExternalAttribute : attributes) {