diff --git a/extensions/ima/src/test/java/com/google/android/exoplayer2/ext/ima/FakeAd.java b/extensions/ima/src/test/java/com/google/android/exoplayer2/ext/ima/FakeAd.java
index b626a08780..59dfc6473c 100644
--- a/extensions/ima/src/test/java/com/google/android/exoplayer2/ext/ima/FakeAd.java
+++ b/extensions/ima/src/test/java/com/google/android/exoplayer2/ext/ima/FakeAd.java
@@ -64,14 +64,17 @@ import java.util.Set;
         };
   }
 
+  @Override
   public int getVastMediaWidth() {
     throw new UnsupportedOperationException();
   }
 
+  @Override
   public int getVastMediaHeight() {
     throw new UnsupportedOperationException();
   }
 
+  @Override
   public int getVastMediaBitrate() {
     throw new UnsupportedOperationException();
   }