diff --git a/samplecode/SampleShaders.cpp b/samplecode/SampleShaders.cpp
index 253388d..0e70a3e 100644
--- a/samplecode/SampleShaders.cpp
+++ b/samplecode/SampleShaders.cpp
@@ -83,7 +83,7 @@
 
 protected:
     // overrides from SkEventSink
-    virtual bool onQuery(SkEvent* evt) {
+    virtual bool onQuery(SkEvent* evt) SK_OVERRIDE {
         if (SampleCode::TitleQ(*evt)) {
             SampleCode::TitleR(evt, "Shaders");
             return true;
@@ -91,7 +91,7 @@
         return this->INHERITED::onQuery(evt);
     }
 
-    virtual void onDrawContent(SkCanvas* canvas) {
+    virtual void onDrawContent(SkCanvas* canvas) SK_OVERRIDE {
         canvas->drawBitmap(fBitmap, 0, 0);
 
         canvas->translate(SkIntToScalar(20), SkIntToScalar(120));
@@ -127,7 +127,7 @@
         return this->INHERITED::onFindClickHandler(x, y, modi);
     }
 
-    virtual bool onClick(Click* click) {
+    virtual bool onClick(Click* click)  SK_OVERRIDE {
         return this->INHERITED::onClick(click);
     }