diff --git a/wadsrc/static/mapinfo/doom2unity.txt b/wadsrc/static/mapinfo/doom2unity.txt
index 05afa8cf74..f4c468821f 100644
--- a/wadsrc/static/mapinfo/doom2unity.txt
+++ b/wadsrc/static/mapinfo/doom2unity.txt
@@ -14,6 +14,13 @@ episode map01
 	key = "h"
 }
 
+episode level01
+{
+	name = "$TXT_D2E2"
+	key = "n"
+	optional
+}
+
 // Wolfenstein 3D censorship
 map MAP31 lookup "HUSTR_31B"
 {