diff --git a/data/helpers.d/backend b/data/helpers.d/backend
index c0cbc616..b715776e 100644
--- a/data/helpers.d/backend
+++ b/data/helpers.d/backend
@@ -123,7 +123,7 @@ ynh_add_nginx_config () {
 	# To avoid a break by set -u, use a void substitution ${var:-}. If the variable is not set, it's simply set with an empty variable.
 	# Substitute in a nginx config file only if the variable is not empty
 	if test -n "${path_url:-}"; then
-		# path_url_slash_less if path_url or a blank value if path_url is only '/'
+		# path_url_slash_less is path_url, or a blank value if path_url is only '/'
 		path_url_slash_less=${path_url%/}
 		ynh_replace_string "__PATH__/" "$path_url_slash_less/" "$finalnginxconf"
 		ynh_replace_string "__PATH__" "$path_url" "$finalnginxconf"