diff --git a/libs/hwui/GradientCache.h b/libs/hwui/GradientCache.h
index 733985317c7c6..7e2c69aa581ce 100644
--- a/libs/hwui/GradientCache.h
+++ b/libs/hwui/GradientCache.h
@@ -19,6 +19,7 @@
 
 #include <SkShader.h>
 
+#include <utils/threads.h>
 #include <utils/Vector.h>
 
 #include "Texture.h"
diff --git a/libs/hwui/TextureCache.h b/libs/hwui/TextureCache.h
index d8793923f39ef..3506f71789cdb 100644
--- a/libs/hwui/TextureCache.h
+++ b/libs/hwui/TextureCache.h
@@ -19,6 +19,7 @@
 
 #include <SkBitmap.h>
 
+#include <utils/threads.h>
 #include <utils/Vector.h>
 
 #include "Debug.h"