diff --git a/java/src/com/android/inputmethod/keyboard/Keyboard.java b/java/src/com/android/inputmethod/keyboard/Keyboard.java
index e3f219162..814b52398 100644
--- a/java/src/com/android/inputmethod/keyboard/Keyboard.java
+++ b/java/src/com/android/inputmethod/keyboard/Keyboard.java
@@ -235,19 +235,6 @@ public class Keyboard {
         return mProximityInfo.getNearestKeys(x, y);
     }
 
-    public static String themeName(int themeId) {
-        // This should be aligned with theme-*.xml resource files' themeId attribute.
-        switch (themeId) {
-        case 0: return "Basic";
-        case 1: return "BasicHighContrast";
-        case 5: return "IceCreamSandwich";
-        case 6: return "Stone";
-        case 7: return "StoneBold";
-        case 8: return "GingerBread";
-        default: return null;
-        }
-    }
-
     public static String printableCode(int code) {
         switch (code) {
         case CODE_SHIFT: return "shift";
diff --git a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
index 165e9aec7..1f3006d9f 100644
--- a/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
+++ b/java/src/com/android/inputmethod/keyboard/KeyboardSwitcher.java
@@ -191,11 +191,11 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions,
             if (DEBUG_CACHE) {
                 Log.d(TAG, "keyboard cache size=" + mKeyboardCache.size() + ": "
                         + ((ref == null) ? "LOAD" : "GCed") + " id=" + id
-                        + " theme=" + Keyboard.themeName(keyboard.mThemeId));
+                        + " theme=" + themeName(keyboard.mThemeId));
             }
         } else if (DEBUG_CACHE) {
             Log.d(TAG, "keyboard cache size=" + mKeyboardCache.size() + ": HIT  id=" + id
-                    + " theme=" + Keyboard.themeName(keyboard.mThemeId));
+                    + " theme=" + themeName(keyboard.mThemeId));
         }
 
         keyboard.onAutoCorrectionStateChanged(mIsAutoCorrectionActive);
@@ -463,4 +463,17 @@ public class KeyboardSwitcher implements KeyboardState.SwitchActions,
             }
         }
     }
+
+    private static String themeName(int themeId) {
+        // This should be aligned with theme-*.xml resource files' themeId attribute.
+        switch (themeId) {
+        case 0: return "Basic";
+        case 1: return "BasicHighContrast";
+        case 5: return "IceCreamSandwich";
+        case 6: return "Stone";
+        case 7: return "StoneBold";
+        case 8: return "GingerBread";
+        default: return null;
+        }
+    }
 }