diff --git a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
index 04396275e0a..489616332c8 100755
--- a/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
+++ b/src/server/scripts/Northrend/IcecrownCitadel/boss_professor_putricide.cpp
@@ -23,6 +23,7 @@
 #include "Spell.h"
 #include "icecrown_citadel.h"
 #include "Vehicle.h"
+#include "GridNotifiers.h"
 
 enum ScriptTexts
 {