diff --git a/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java b/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java
index e192077922..75b2505d76 100644
--- a/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java
+++ b/library/dash/src/main/java/com/google/android/exoplayer2/source/dash/DashMediaSource.java
@@ -258,7 +258,7 @@ public final class DashMediaSource extends BaseMediaSource {
      */
     public DashMediaSource createMediaSource(DashManifest manifest) {
       Assertions.checkArgument(!manifest.dynamic);
-      if (streamKeys != null && !streamKeys.isEmpty()) {
+      if (!streamKeys.isEmpty()) {
         manifest = manifest.copy(streamKeys);
       }
       return new DashMediaSource(