diff --git a/extras/blanudmf/Includes/BlanKart_things.cfg b/extras/blanudmf/Includes/BlanKart_things.cfg
index cf681f924..5d2c8283a 100644
--- a/extras/blanudmf/Includes/BlanKart_things.cfg
+++ b/extras/blanudmf/Includes/BlanKart_things.cfg
@@ -2349,6 +2349,12 @@ udmf
 				type = 11;
 				enum = "noyes";
 			}
+			arg3
+			{
+				title = "Invisible?";
+				type = 11;
+				enum = "noyes";
+			}
 		}
 	}