diff --git a/Source/Entities/Actor.h b/Source/Entities/Actor.h
index 3da398ddc0..6dac4bb04c 100644
--- a/Source/Entities/Actor.h
+++ b/Source/Entities/Actor.h
@@ -6,6 +6,7 @@
 /// http://www.datarealms.com
 /// Inclusions of header files
 #include "MOSRotating.h"
+#include "PathFinder.h"
 
 namespace RTE {