diff --git a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
index b59c040d90b..ee198356359 100644
--- a/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
+++ b/src/server/scripts/EasternKingdoms/Uldaman/instance_uldaman.cpp
@@ -26,6 +26,7 @@ EndScriptData */
 #include "ScriptMgr.h"
 #include "InstanceScript.h"
 #include "uldaman.h"
+#include "CreatureAI.h"
 
 enum Spells
 {