diff --git a/java/src/com/android/inputmethod/keyboard/Key.java b/java/src/com/android/inputmethod/keyboard/Key.java
index 86ea4c5..81ea90a 100644
--- a/java/src/com/android/inputmethod/keyboard/Key.java
+++ b/java/src/com/android/inputmethod/keyboard/Key.java
@@ -702,6 +702,10 @@
         return ((mLabelFlags | defaultFlags) & LABEL_FLAGS_KEEP_BACKGROUND_ASPECT_RATIO) != 0;
     }
 
+    public final boolean hasCustomActionLabel() {
+        return (mLabelFlags & LABEL_FLAGS_FROM_CUSTOM_ACTION_LABEL) != 0;
+    }
+
     private final boolean isShiftedLetterActivated() {
         return (mLabelFlags & LABEL_FLAGS_SHIFTED_LETTER_ACTIVATED) != 0
                 && !TextUtils.isEmpty(mHintLabel);
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardView.java b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
index bb3cbb0..98cd1da 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardView.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardView.java
@@ -343,7 +343,9 @@
         final int keyWidth = key.getDrawWidth();
         final int keyHeight = key.getHeight();
         final int bgWidth, bgHeight, bgX, bgY;
-        if (key.needsToKeepBackgroundAspectRatio(mDefaultKeyLabelFlags)) {
+        if (key.needsToKeepBackgroundAspectRatio(mDefaultKeyLabelFlags)
+                // HACK: To disable expanding normal/functional key background.
+                && !key.hasCustomActionLabel()) {
             final int intrinsicWidth = background.getIntrinsicWidth();
             final int intrinsicHeight = background.getIntrinsicHeight();
             final float minScale = Math.min(