diff --git a/language.version b/language.version
index a183a4239..951191498 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r520 \cu(Tue  1 Jun 16:52:02 CEST 2021)\c-";
-SWWM_SHORTVER="\cw0.9.11b-pre r520 \cu(2021-06-01 16:52:02)\c-";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r521 \cu(Tue  1 Jun 16:52:15 CEST 2021)\c-";
+SWWM_SHORTVER="\cw0.9.11b-pre r521 \cu(2021-06-01 16:52:15)\c-";
diff --git a/zscript/handler/swwm_handler_debugrender.zsc b/zscript/handler/swwm_handler_debugrender.zsc
index d4c332f48..8a4f4a4c2 100644
--- a/zscript/handler/swwm_handler_debugrender.zsc
+++ b/zscript/handler/swwm_handler_debugrender.zsc
@@ -113,7 +113,7 @@ extend Class SWWMHandler
 			if ( a == players[consoleplayer].Camera ) continue;
 			if ( a.bINVISIBLE && !(a is 'DynamicLight') ) continue;
 			if ( (a is 'Inventory') && Inventory(a).Owner ) continue;
-			if ( (a is 'SWWMShadow') || (a is 'GhostArtifactX') || (a is 'DemolitionistSelfLight') ) continue;
+			if ( (a is 'SWWMShadow') || (a is 'GhostArtifactX') || (a is 'DemolitionistSelfLight') || (a is 'HeadpatTracker') ) continue;
 			if ( a.Distance3DSquared(e.Camera) > 1000000 ) continue;
 			DrawActor(e,a);
 		}