diff --git a/sp/src/game/server/hl2/weapon_ar1.cpp b/sp/src/game/server/hl2/weapon_ar1.cpp
index c6e49239..0d9c0240 100644
--- a/sp/src/game/server/hl2/weapon_ar1.cpp
+++ b/sp/src/game/server/hl2/weapon_ar1.cpp
@@ -98,7 +98,7 @@ public:
 		}
 	}
 
-#ifdef MAPBSAE
+#ifdef MAPBASE
 	virtual acttable_t		*GetBackupActivityList() { return GetAR2Acttable(); }
 	virtual int				GetBackupActivityListCount() { return GetAR2ActtableCount(); }
 #endif