diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index ac17691cb82b1..fb7a6aac93c69 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -5381,7 +5381,12 @@ public class WindowManagerService extends IWindowManager.Stub
 
     @Override
     public boolean isKeyguardSecure() {
-        return mPolicy.isKeyguardSecure();
+        long origId = Binder.clearCallingIdentity();
+        try {
+            return mPolicy.isKeyguardSecure();
+        } finally {
+            Binder.restoreCallingIdentity(origId);
+        }
     }
 
     @Override