1 files changed, 1 insertions, 0 deletions
diff --git a/dm/DM.cpp b/dm/DM.cpp
index c3a4272509..6b3464157b 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -18,6 +18,7 @@
 #include "SkForceLinking.h"
 #include "SkGraphics.h"
 #include "SkMD5.h"
+#include "SkMutex.h"
 #include "SkOSFile.h"
 #include "SkTHash.h"
 #include "SkTaskGroup.h"