diff --git a/tests/graphics/clippingbox.cpp b/tests/graphics/clippingbox.cpp
index b933b4d08b..ad1e556a20 100644
--- a/tests/graphics/clippingbox.cpp
+++ b/tests/graphics/clippingbox.cpp
@@ -284,6 +284,8 @@ static void FlushDC(wxDC& dc)
             dc.SetGraphicsContext(NULL);
 #endif // __WXMSW__ && wxUSE_GRAPHICS_DIRECT2D
     }
+#else
+    wxUnusedVar(dc);
 #endif // wxUSE_GRAPHICS_CONTEXT
 }