diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index c94ffd9..6af4123 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -968,7 +968,7 @@
     }
 
     @Override
-    public void onDetachedFromWindow() {
+    protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         closing();
         if (mPreviewPlacer != null) {
diff --git a/java/src/com/android/inputmethod/latin/SuggestionsView.java b/java/src/com/android/inputmethod/latin/SuggestionsView.java
index 1961487..9d0e42a 100644
--- a/java/src/com/android/inputmethod/latin/SuggestionsView.java
+++ b/java/src/com/android/inputmethod/latin/SuggestionsView.java
@@ -862,7 +862,7 @@
     }
 
     @Override
-    public void onDetachedFromWindow() {
+    protected void onDetachedFromWindow() {
         super.onDetachedFromWindow();
         mHandler.cancelAllMessages();
         hidePreview();