diff --git a/samplecode/SampleApp.h b/samplecode/SampleApp.h
index 99eb54f..e2bdc5f 100644
--- a/samplecode/SampleApp.h
+++ b/samplecode/SampleApp.h
@@ -51,6 +51,8 @@
     #endif // SK_ANGLE
             case kNullGPU_DeviceType:
                 return true;
+            default:
+                return false;
         }
     #endif // SK_SUPPORT_GPU
         return false;