diff --git a/gm/color4f.cpp b/gm/color4f.cpp
index 36850a1..5f281e9 100644
--- a/gm/color4f.cpp
+++ b/gm/color4f.cpp
@@ -96,7 +96,7 @@
     canvas->translate(10, 10);
 
     auto srgb = SkColorSpace::MakeSRGB();
-    auto spin = as_CSB(srgb)->makeColorSpin(); // RGB -> GBR
+    auto spin = srgb->makeColorSpin(); // RGB -> GBR
 
     const SkColor4f colors[] {
         { 1, 0, 0, 1 },