diff --git a/scripts/install b/scripts/install
index 1e6c714..01acd56 100644
--- a/scripts/install
+++ b/scripts/install
@@ -91,7 +91,7 @@ sudo sed -i "/#pluxml_hosts/d" /etc/hosts
 
 # If app is private, remove url to SSOWat conf from skipped_uris
 if [ "$is_public" == "No" ]; then
-  ynh_app_setting_set "$app" unprotected_uris -d
+  ynh_app_setting_delete "$app" unprotected_uris
 fi
 
 # Add admin to the allowed users