diff --git a/src/dobjgc.cpp b/src/dobjgc.cpp
index da3d28ac1..51b98eee4 100644
--- a/src/dobjgc.cpp
+++ b/src/dobjgc.cpp
@@ -370,6 +370,8 @@ static void MarkRoot()
 	{
 		Mark(PClass::AllClasses[i]);
 	}
+	// Mark global symbols
+	GlobalSymbols.MarkSymbols();
 	// Mark bot stuff.
 	Mark(bglobal.firstthing);
 	Mark(bglobal.body1);
diff --git a/src/thingdef/thingdef.cpp b/src/thingdef/thingdef.cpp
index 8b93b7e54..0a02e2763 100644
--- a/src/thingdef/thingdef.cpp
+++ b/src/thingdef/thingdef.cpp
@@ -425,7 +425,6 @@ void LoadActors ()
 
 	timer.Reset(); timer.Clock();
 	ActorDamageFuncs.Clear();
-	GlobalSymbols.ReleaseSymbols();
 	FScriptPosition::ResetErrorCounter();
 	InitThingdef();
 	lastlump = 0;