diff --git a/samplecode/SampleSlides.cpp b/samplecode/SampleSlides.cpp
index 1154c76..54a9cf9 100644
--- a/samplecode/SampleSlides.cpp
+++ b/samplecode/SampleSlides.cpp
@@ -9,6 +9,7 @@
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkDevice.h"
+#include "SkFlattenableBuffers.h"
 #include "SkPaint.h"
 
 #define BG_COLOR    0xFFDDDDDD