diff --git a/src/Sources/OMXPlayerCache.h b/src/Sources/OMXPlayerCache.h
index 7949a77..67338f5 100644
--- a/src/Sources/OMXPlayerCache.h
+++ b/src/Sources/OMXPlayerCache.h
@@ -2,6 +2,7 @@
 
 #include "ofMain.h"
 #include "ofxOMXPlayer.h"
+#include "VideoSource.h"
 
 namespace ofx {
 namespace piMapper {