diff --git a/inc/md2html.cfg b/inc/md2html.cfg
index 41f98ce52..b3a2844c4 100644
--- a/inc/md2html.cfg
+++ b/inc/md2html.cfg
@@ -363,7 +363,7 @@ mock/*/README.md
 	-o
 	bin/subst.default.sh
 	-o
-	bin/ssubst.entry-index.sh
+	bin/subst.entry-index.sh
 	-b
 	bin/output-index-author.sh
 	-a