diff --git a/public/avi/iavi.h b/public/avi/iavi.h
index 10dc0acb..081ec1ff 100644
--- a/public/avi/iavi.h
+++ b/public/avi/iavi.h
@@ -14,7 +14,7 @@
 #pragma once
 #endif
 
-#include "appframework/iappsystem.h"
+#include "appframework/IAppSystem.h"
 
 //-----------------------------------------------------------------------------
 // Forward declarations