diff --git a/Docs/Luadoc/Lua.xml b/Docs/Luadoc/Lua.xml
index 994dd0d681..0f26684e4b 100644
--- a/Docs/Luadoc/Lua.xml
+++ b/Docs/Luadoc/Lua.xml
@@ -1377,6 +1377,7 @@
 		</Class>
 		<Class base='Screen' name='ScreenWithMenuElements'>
 			<Function name='Cancel'/>
+			<Function name='SetAllowLateJoin'/>
 		</Class>
 		<Class base='ScreenWithMenuElements' name='ScreenWithMenuElementsSimple'/>
 		<Class name='Song'>
diff --git a/Docs/Luadoc/LuaDocumentation.xml b/Docs/Luadoc/LuaDocumentation.xml
index d40e06f3b2..62b16f91c5 100644
--- a/Docs/Luadoc/LuaDocumentation.xml
+++ b/Docs/Luadoc/LuaDocumentation.xml
@@ -3903,6 +3903,9 @@ save yourself some time, copy this for undocumented things:
 	<Function name='Cancel' return='void' arguments=''>
 		Tells the screen to go to the previous screen.
 	</Function>
+	<Function name='SetAllowLateJoin' return='void' arguments='bool'>
+		Sets whether the screen allows late joining.  This only works for screens that are just ScreenWithMenuElements, as most derived screens have their own hard coded function for whether late joining is allowed.
+	</Function>
 </Class>
 <Class name='Song'>
 	<Function name='GetAllSteps' return='{Steps}' arguments=''>
diff --git a/src/ScreenWithMenuElements.cpp b/src/ScreenWithMenuElements.cpp
index f02d2e1cb4..21bfbd140e 100644
--- a/src/ScreenWithMenuElements.cpp
+++ b/src/ScreenWithMenuElements.cpp
@@ -25,6 +25,7 @@ ScreenWithMenuElements::ScreenWithMenuElements()
 	FOREACH_PlayerNumber( p )
 		m_MemoryCardDisplay[p] = NULL;
 	m_MenuTimer = NULL;
+	m_bShouldAllowLateJoin= false;
 }
 
 void ScreenWithMenuElements::Init()
@@ -377,11 +378,18 @@ class LunaScreenWithMenuElements: public Luna<ScreenWithMenuElements>
 public:
 	static int Cancel( T* p, lua_State *L )		{ p->Cancel( SM_GoToPrevScreen ); return 0; }
 	static int IsTransitioning( T* p, lua_State *L ) { lua_pushboolean( L, p->IsTransitioning() ); return 1; }
+	static int SetAllowLateJoin( T* p, lua_State *L )
+	{
+		p->m_bShouldAllowLateJoin= BArg(1);
+		return 0;
+	}
+
 
 	LunaScreenWithMenuElements()
 	{
 		ADD_METHOD( Cancel );
 		ADD_METHOD( IsTransitioning );
+		ADD_METHOD( SetAllowLateJoin );
 	}
 };
 
diff --git a/src/ScreenWithMenuElements.h b/src/ScreenWithMenuElements.h
index 01d55b7b27..2879e96d64 100644
--- a/src/ScreenWithMenuElements.h
+++ b/src/ScreenWithMenuElements.h
@@ -33,6 +33,9 @@ public:
 	// Lua
 	virtual void PushSelf( lua_State *L );
 
+	virtual bool AllowLateJoin() const { return m_bShouldAllowLateJoin; }
+	bool m_bShouldAllowLateJoin; // So that it can be exposed to Lua.
+
 protected:
 	virtual void StartPlayingMusic();
 	void SetHelpText( RString s );