diff --git a/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/Blend.java b/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/Blend.java
index 292082424543f..2303fc3dd564c 100644
--- a/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/Blend.java
+++ b/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/Blend.java
@@ -52,8 +52,10 @@ public class Blend extends TestBase {
             new AdapterView.OnItemSelectedListener() {
                 public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
                     currentIntrinsic = pos;
-                    runTest();
-                    act.updateDisplay();
+                    if (mRS != null) {
+                        runTest();
+                        act.updateDisplay();
+                    }
                 }
 
                 public void onNothingSelected(AdapterView parent) {
diff --git a/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/TestBase.java b/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/TestBase.java
index 8009daae900dd..bb3f2f3d571ef 100644
--- a/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/TestBase.java
+++ b/tests/RenderScriptTests/ImageProcessing/src/com/android/rs/image/TestBase.java
@@ -123,6 +123,7 @@ public class TestBase  {
 
     public void destroy() {
         mRS.destroy();
+        mRS = null;
     }
 
     public void updateBitmap(Bitmap b) {