diff --git a/core/java/com/android/internal/inputmethod/InputBindResult.java b/core/java/com/android/internal/inputmethod/InputBindResult.java
index 74c61d152f2f0..f101497125e91 100644
--- a/core/java/com/android/internal/inputmethod/InputBindResult.java
+++ b/core/java/com/android/internal/inputmethod/InputBindResult.java
@@ -184,7 +184,7 @@ public final class InputBindResult implements Parcelable {
     /**
      * The accessibility services.
      */
-    public SparseArray<IAccessibilityInputMethodSession> accessibilitySessions;
+    public final SparseArray<IAccessibilityInputMethodSession> accessibilitySessions;
 
     /**
      * The input channel used to send input events to this IME.