diff --git a/mp/src/game/server/buttons.cpp b/mp/src/game/server/buttons.cpp
index af46d0c4c6f..682433a5ed0 100644
--- a/mp/src/game/server/buttons.cpp
+++ b/mp/src/game/server/buttons.cpp
@@ -897,6 +897,11 @@ void CRotButton::Spawn( void )
 	m_fRotating = TRUE;
 
 	SetUse(&CRotButton::ButtonUse);
+	
+	if (HasSpawnFlags(SF_BUTTON_LOCKED))
+	{
+		m_bLocked = true;
+	}
 
 	//
 	// If touching activates the button, set its touch function.
diff --git a/sp/src/game/server/buttons.cpp b/sp/src/game/server/buttons.cpp
index af46d0c4c6f..7028e7605de 100644
--- a/sp/src/game/server/buttons.cpp
+++ b/sp/src/game/server/buttons.cpp
@@ -898,6 +898,11 @@ void CRotButton::Spawn( void )
 
 	SetUse(&CRotButton::ButtonUse);
 
+	if (HasSpawnFlags(SF_BUTTON_LOCKED))
+	{
+		m_bLocked = true;
+	}
+	
 	//
 	// If touching activates the button, set its touch function.
 	//