diff --git a/src/server/game/Combat/ThreatManager.h b/src/server/game/Combat/ThreatManager.h
index 8e2ed7fe7d3..7a116101c55 100755
--- a/src/server/game/Combat/ThreatManager.h
+++ b/src/server/game/Combat/ThreatManager.h
@@ -20,6 +20,7 @@
 #define _THREATMANAGER
 
 #include "Common.h"
+#include "Util.h"
 #include "SharedDefines.h"
 #include "LinkedReference/Reference.h"
 #include "UnitEvents.h"