diff --git a/language.version b/language.version
index 20d4bcea5..ba87f3c62 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r638 \cu(Sat 26 Nov 12:09:38 CET 2022)\c-";
-SWWM_SHORTVER="\cw1.3pre r638 \cu(2022-11-26 12:09:38)\c-";
+SWWM_MODVER="\cyDEMOLITIONIST \cw1.3pre r639 \cu(Sat 26 Nov 21:18:08 CET 2022)\c-";
+SWWM_SHORTVER="\cw1.3pre r639 \cu(2022-11-26 21:18:08)\c-";
diff --git a/models/nashgore/Footprint/Footprint01.png b/models/nashgore/Footprint/DemoFootprint.png
similarity index 100%
rename from models/nashgore/Footprint/Footprint01.png
rename to models/nashgore/Footprint/DemoFootprint.png
diff --git a/zscript/handler/swwm_handler_worldthings.zsc b/zscript/handler/swwm_handler_worldthings.zsc
index bb57c63b6..a86658b28 100644
--- a/zscript/handler/swwm_handler_worldthings.zsc
+++ b/zscript/handler/swwm_handler_worldthings.zsc
@@ -290,6 +290,9 @@ extend Class SWWMHandler
 		if ( inultdoom2 == -1 ) inultdoom2 = SWWMUtility.IsUltDoom2();
 		if ( e.Thing.GetClass() == 'Pig' )
 			e.Thing.SetTag("$FN_PIG");	// missing in gzdoom
+		// nashgore compat
+		if ( e.Thing.GetClassName() == "NashGoreFootprint" )
+			e.Thing.A_ChangeModel("",0,"","",0,"models/nashgore/Footprint","DemoFootprint.png");
 		// eviternity stuff
 		else if ( (e.Thing.GetClassName() == "Archangelus")
 			|| (e.Thing.GetClassName() == "ArchangelusA")