diff --git a/language.version b/language.version
index 3e6da8b13..6847743db 100644
--- a/language.version
+++ b/language.version
@@ -1,2 +1,2 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r577 \cu(Sat 24 Oct 20:36:36 CEST 2020)";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r578 \cu(Sat 24 Oct 20:54:29 CEST 2020)";
diff --git a/zscript/swwm_handler.zsc b/zscript/swwm_handler.zsc
index 473621004..e4e02165c 100644
--- a/zscript/swwm_handler.zsc
+++ b/zscript/swwm_handler.zsc
@@ -874,7 +874,7 @@ Class SWWMHandler : EventHandler
 
 	override void WorldThingDied( WorldEvent e )
 	{
-		if ( ((e.Thing.default.bBOSS) || (e.Thing.default.Health >= 1000)) && (alreadygold.Find(e.Thing) == alreadygold.Size()) )
+		if ( e.Thing.default.bISMONSTER && ((e.Thing.default.bBOSS) || (e.Thing.default.Health >= 1000)) && (alreadygold.Find(e.Thing) == alreadygold.Size()) )
 		{
 			// make sure we can't farm drops from revivable enemies
 			// (or cause some things to spam-spawn gold shells)