diff --git a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
index 0d41a37caf0d4..f34925392981d 100644
--- a/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
+++ b/services/core/java/com/android/server/inputmethod/InputMethodManagerService.java
@@ -204,7 +204,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 /**
  * This class provides a system service that manages input methods.
  */
-public class InputMethodManagerService extends IInputMethodManager.Stub
+public final class InputMethodManagerService extends IInputMethodManager.Stub
         implements Handler.Callback {
     static final boolean DEBUG = false;
     static final String TAG = "InputMethodManagerService";