diff --git a/library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java b/library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java
index 7904977dee..c629e365ee 100644
--- a/library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java
+++ b/library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java
@@ -673,7 +673,7 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
   @Override
   protected boolean isReady() {
     return format != null && !waitingForKeys
-        && sourceState != SOURCE_STATE_NOT_READY || outputIndex >= 0 || isWithinHotswapPeriod();
+        && (sourceState != SOURCE_STATE_NOT_READY || outputIndex >= 0 || isWithinHotswapPeriod());
   }
 
   /**