diff --git a/src/core/SkBlitter_RGB16.cpp b/src/core/SkBlitter_RGB16.cpp
index ef38be429..21b5a16e3 100644
--- a/src/core/SkBlitter_RGB16.cpp
+++ b/src/core/SkBlitter_RGB16.cpp
@@ -13,6 +13,7 @@
 #include "SkDither.h"
 #include "SkShader.h"
 #include "SkUtils.h"
+#include "SkUtilsArm.h"
 #include "SkXfermode.h"
 
 #if SK_ARM_NEON_IS_ALWAYS && defined(SK_CPU_LENDIAN)