diff --git a/TombEngine/Objects/TR3/Entity/SealMutant.cpp b/TombEngine/Objects/TR3/Entity/SealMutant.cpp
index 87b2b46d7..1d7198dee 100644
--- a/TombEngine/Objects/TR3/Entity/SealMutant.cpp
+++ b/TombEngine/Objects/TR3/Entity/SealMutant.cpp
@@ -1,4 +1,5 @@
 #include "framework.h"
+#include "Objects/TR3/Entity/SealMutant.h"
 
 #include "Game/animation.h"
 #include "Game/control/box.h"