diff --git a/src/server/game/Garrison/GarrisonMgr.cpp b/src/server/game/Garrison/GarrisonMgr.cpp
index dd3ff08c0d1..4e7266c0855 100644
--- a/src/server/game/Garrison/GarrisonMgr.cpp
+++ b/src/server/game/Garrison/GarrisonMgr.cpp
@@ -16,6 +16,7 @@
  */
 
 #include "GarrisonMgr.h"
+#include "ObjectDefines.h"
 
 void GarrisonMgr::Initialize()
 {
diff --git a/src/server/game/Garrison/GarrisonMgr.h b/src/server/game/Garrison/GarrisonMgr.h
index ca6f4adbe48..1b96f9ca27e 100644
--- a/src/server/game/Garrison/GarrisonMgr.h
+++ b/src/server/game/Garrison/GarrisonMgr.h
@@ -18,6 +18,8 @@
 #ifndef GarrisonMgr_h__
 #define GarrisonMgr_h__
 
+#include <unordered_set>
+
 #include "DB2Stores.h"
 
 class GarrisonMgr