diff --git a/extras/conf/SRB2-22.cfg b/extras/conf/SRB2-22.cfg
index 5dd7a1c5b349b2d9f9707a5fd7072dc8e7fb70c3..7b1b678f220d843f812b285ba13470bcb8b658ad 100644
--- a/extras/conf/SRB2-22.cfg
+++ b/extras/conf/SRB2-22.cfg
@@ -750,12 +750,6 @@ linedeftypes
 			prefix = "(20)";
 		}
 
-		21
-		{
-			title = "Explicitly Include Line <disabled>";
-			prefix = "(21)";
-		}
-
 		22
 		{
 			title = "Parameters";