diff --git a/tools/gpu/gl/debug/GrBufferObj.h b/tools/gpu/gl/debug/GrBufferObj.h
index c91606d..d0217b2 100644
--- a/tools/gpu/gl/debug/GrBufferObj.h
+++ b/tools/gpu/gl/debug/GrBufferObj.h
@@ -25,7 +25,7 @@
         , fSize(0)
         , fUsage(GR_GL_STATIC_DRAW) {
     }
-    virtual ~GrBufferObj() {
+    ~GrBufferObj() override {
         delete[] fDataPtr;
     }