diff --git a/tests/WrappedSurfaceCopyOnWriteTest.cpp b/tests/WrappedSurfaceCopyOnWriteTest.cpp
index f7b39d0..99629bd 100644
--- a/tests/WrappedSurfaceCopyOnWriteTest.cpp
+++ b/tests/WrappedSurfaceCopyOnWriteTest.cpp
@@ -15,6 +15,7 @@
 #include "include/core/SkImageInfo.h"
 #include "include/core/SkRect.h"
 #include "include/core/SkRefCnt.h"
+#include "include/core/SkSamplingOptions.h"
 #include "include/core/SkSurface.h"
 #include "include/core/SkSurfaceCharacterization.h"
 #include "include/core/SkTypes.h"