diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index 05f347313ecb43fcebb724f6517f7067efae0e48..f073c23878a6a54f0936b4f500afa3fa7a8533ff 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -241,7 +241,9 @@ class DisplayContent {
                 mTouchExcludeRegion.op(mTmpRect, Region.Op.DIFFERENCE);
             }
         }
-        mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion);
+        if (mTapDetector != null) {
+            mTapDetector.setTouchExcludeRegion(mTouchExcludeRegion);
+        }
     }
 
     void switchUserStacks() {