diff --git a/docs/libcurl/libcurl.m4 b/docs/libcurl/libcurl.m4
index d02092073c..0e470ee9f9 100644
--- a/docs/libcurl/libcurl.m4
+++ b/docs/libcurl/libcurl.m4
@@ -272,4 +272,4 @@ if (x) {;}
   fi
 
   unset _libcurl_with
-])dnl
+])