diff --git a/samplecode/SampleDegenerateQuads.cpp b/samplecode/SampleDegenerateQuads.cpp
index b905410..ddf23e7 100644
--- a/samplecode/SampleDegenerateQuads.cpp
+++ b/samplecode/SampleDegenerateQuads.cpp
@@ -448,7 +448,7 @@
         *domain = {vertices[52], vertices[53], vertices[54], vertices[55]};
     }
 
-    typedef Sample INHERITED;
+    using INHERITED = Sample;
 };
 
 class DegenerateQuadSample::Click : public Sample::Click {