diff --git a/toonz/sources/tcomposer/tcomposer.cpp b/toonz/sources/tcomposer/tcomposer.cpp
index bfc1368f..f425e3c5 100644
--- a/toonz/sources/tcomposer/tcomposer.cpp
+++ b/toonz/sources/tcomposer/tcomposer.cpp
@@ -29,6 +29,7 @@
 #include "toonz/multimediarenderer.h"
 #include "toutputproperties.h"
 #include "toonz/imagestyles.h"
+#include "tproperty.h"
 
 // TnzSound includes
 #include "tnzsound.h"