diff --git a/core/java/android/webkit/WebSettings.java b/core/java/android/webkit/WebSettings.java
index 642aa22d7b707..77f67765c44fd 100644
--- a/core/java/android/webkit/WebSettings.java
+++ b/core/java/android/webkit/WebSettings.java
@@ -1807,7 +1807,9 @@ public class WebSettings {
      * @hide
      */
     public void setProperty(String key, String value) {
-        mWebView.nativeSetProperty(key, value);
+        if (mWebView.nativeSetProperty(key, value)) {
+            mWebView.contentInvalidateAll();
+        }
     }
 
     /**
diff --git a/core/java/android/webkit/WebView.java b/core/java/android/webkit/WebView.java
index 17dfbe0552924..5d776fd7dfd6a 100644
--- a/core/java/android/webkit/WebView.java
+++ b/core/java/android/webkit/WebView.java
@@ -9278,6 +9278,6 @@ public class WebView extends AbsoluteLayout
      */
     private native boolean  nativeScrollLayer(int layer, int newX, int newY);
     private native int      nativeGetBackgroundColor();
-    native void     nativeSetProperty(String key, String value);
+    native boolean  nativeSetProperty(String key, String value);
     native String   nativeGetProperty(String key);
 }