diff --git a/intern/cycles/util/util_types.h b/intern/cycles/util/util_types.h
index 733b97e1432..aabca6c81fc 100644
--- a/intern/cycles/util/util_types.h
+++ b/intern/cycles/util/util_types.h
@@ -28,9 +28,9 @@
 #endif
 
 #include "util/util_defines.h"
-#include "util/util_optimization.h"
 
 #ifndef __KERNEL_GPU__
+#  include "util/util_optimization.h"
 #  include "util/util_simd.h"
 #endif