diff --git a/src/g_shared/a_skies.cpp b/src/g_shared/a_skies.cpp
index d42324936..9e99d9368 100644
--- a/src/g_shared/a_skies.cpp
+++ b/src/g_shared/a_skies.cpp
@@ -177,18 +177,3 @@ void ASectorSilencer::Destroy ()
 	Super::Destroy ();
 }
 
-class ASectorFlagSetter : public AActor
-{
-	DECLARE_CLASS (ASectorFlagSetter, AActor)
-public:
-	void BeginPlay ();
-};
-
-IMPLEMENT_CLASS(ASectorFlagSetter, false, false)
-
-void ASectorFlagSetter::BeginPlay ()
-{
-	Super::BeginPlay ();
-	Sector->Flags |= args[0];
-}
-
diff --git a/wadsrc/static/zscript/shared/sharedmisc.txt b/wadsrc/static/zscript/shared/sharedmisc.txt
index 6da942e39..1b5ad4ee9 100644
--- a/wadsrc/static/zscript/shared/sharedmisc.txt
+++ b/wadsrc/static/zscript/shared/sharedmisc.txt
@@ -193,7 +193,7 @@ class RandomSpawner : Actor native
 
 // Sector flag setter ------------------------------------------------------
 
-class SectorFlagSetter : Actor native
+class SectorFlagSetter : Actor
 {
 	Default
 	{
@@ -202,6 +202,12 @@ class SectorFlagSetter : Actor native
 		+DONTSPLASH
 		RenderStyle "None";
 	}
+	
+	override void BeginPlay ()
+	{
+		Super.BeginPlay ();
+		CurSector.Flags |= args[0];
+	}
 }
 
 // Marker for sounds : Actor -------------------------------------------------------