diff --git a/tests/DumpRenderTree/src/com/android/dumprendertree/ReliabilityTestActivity.java b/tests/DumpRenderTree/src/com/android/dumprendertree/ReliabilityTestActivity.java
index db40daf6e4591..995c129e4398f 100644
--- a/tests/DumpRenderTree/src/com/android/dumprendertree/ReliabilityTestActivity.java
+++ b/tests/DumpRenderTree/src/com/android/dumprendertree/ReliabilityTestActivity.java
@@ -124,6 +124,7 @@ public class ReliabilityTestActivity extends Activity {
     protected void onDestroy() {
         super.onDestroy();
         Log.v(LOGTAG, "onDestroy, inst=" + Integer.toHexString(hashCode()));
+        webView.clearCache(true);
         webView.destroy();
     }