diff --git a/sp/src/game/server/hl2/npc_strider.cpp b/sp/src/game/server/hl2/npc_strider.cpp
index 5be578f310..a4289fdb2a 100644
--- a/sp/src/game/server/hl2/npc_strider.cpp
+++ b/sp/src/game/server/hl2/npc_strider.cpp
@@ -395,6 +395,9 @@ BEGIN_DATADESC( CNPC_Strider )
 	DEFINE_INPUTFUNC( FIELD_VOID, "EnableMinigun", InputEnableMinigun ),
 	DEFINE_INPUTFUNC( FIELD_FLOAT, "StopShootingMinigunForSeconds", InputStopShootingMinigunForSeconds ),
 	DEFINE_INPUTFUNC( FIELD_VOID, "DisableCrouch", InputDisableCrouch ),
+#ifdef MAPBASE
+	DEFINE_INPUTFUNC( FIELD_VOID, "EnableCrouch", InputEnableCrouch ),
+#endif
 	DEFINE_INPUTFUNC( FIELD_VOID, "DisableMoveToLOS", InputDisableMoveToLOS ),
 	DEFINE_INPUTFUNC( FIELD_STRING, "DisableCollisionWith", InputDisableCollisionWith ),
 	DEFINE_INPUTFUNC( FIELD_STRING, "EnableCollisionWith", InputEnableCollisionWith ),
@@ -2362,6 +2365,15 @@ void CNPC_Strider::InputDisableCrouch( inputdata_t &inputdata )
 	m_bDontCrouch = true;
 }
 
+#ifdef MAPBASE
+//---------------------------------------------------------
+//---------------------------------------------------------
+void CNPC_Strider::InputEnableCrouch( inputdata_t &inputdata )
+{
+	m_bDontCrouch = false;
+}
+#endif
+
 //---------------------------------------------------------
 //---------------------------------------------------------
 void CNPC_Strider::InputDisableMoveToLOS( inputdata_t &inputdata )
diff --git a/sp/src/game/server/hl2/npc_strider.h b/sp/src/game/server/hl2/npc_strider.h
index a907459962..d5bdd2095c 100644
--- a/sp/src/game/server/hl2/npc_strider.h
+++ b/sp/src/game/server/hl2/npc_strider.h
@@ -171,6 +171,9 @@ class CNPC_Strider : public CAI_BlendingHost<CAI_BaseNPC>,
 	void			InputDisableAggressiveBehavior( inputdata_t &inputdata );
 	void			InputStopShootingMinigunForSeconds( inputdata_t &inputdata );
 	void			InputDisableCrouch( inputdata_t &inputdata );
+#ifdef MAPBASE
+	void			InputEnableCrouch( inputdata_t &inputdata );
+#endif
 	void			InputDisableMoveToLOS( inputdata_t &inputdata );
 	void			InputExplode( inputdata_t &inputdata );
 	void			InputScaleGroundSpeed( inputdata_t &inputdata );