diff --git a/mp/src/game/server/baseentity.h b/mp/src/game/server/baseentity.h
index e344d78e..8aed4e10 100644
--- a/mp/src/game/server/baseentity.h
+++ b/mp/src/game/server/baseentity.h
@@ -226,6 +226,7 @@ enum Class_T
 	CLASS_TURRET,
 	CLASS_BACKPACK,
 	CLASS_INFOSCRIPT,
+	CLASS_TRIGGER, // see https://github.com/fortressforever-2013/fortressforever-src/issues/34
 	CLASS_TRIGGERSCRIPT,
 	CLASS_TRIGGER_CLIP,
 	CLASS_TEAMSPAWN,
diff --git a/mp/src/game/server/triggers.h b/mp/src/game/server/triggers.h
index b02f26bd..df912807 100644
--- a/mp/src/game/server/triggers.h
+++ b/mp/src/game/server/triggers.h
@@ -61,6 +61,8 @@ class CBaseTrigger : public CBaseToggle
 	void UpdateOnRemove( void );
 	void TouchTest(  void );
 
+	virtual Class_T Classify( void ) { return CLASS_TRIGGER; }
+
 	// Input handlers
 	virtual void InputEnable( inputdata_t &inputdata );
 	virtual void InputDisable( inputdata_t &inputdata );