diff --git a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
index 3e320a9945..2c40e7ef70 100644
--- a/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
+++ b/library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerControlView.java
@@ -1475,7 +1475,7 @@ public class StyledPlayerControlView extends FrameLayout {
     settingsWindow.setHeight(height);
   }
 
-  private void displaySettingsWindow(RecyclerView.Adapter adapter) {
+  private void displaySettingsWindow(RecyclerView.Adapter<?> adapter) {
     settingsView.setAdapter(adapter);
 
     updateSettingsWindowSize();