diff --git a/lib/glance b/lib/glance
index 21c1fa595a..55d5fb37ec 100644
--- a/lib/glance
+++ b/lib/glance
@@ -125,7 +125,7 @@ function configure_glance() {
         iniset $GLANCE_API_CONF DEFAULT swift_store_key $SERVICE_PASSWORD
         iniset $GLANCE_API_CONF DEFAULT swift_store_create_container_on_put True
 
-        iniset_multiline DEFAULT known_stores glance.store.filesystem.Store glance.store.http.Store glance.store.swift.Store
+        iniset $GLANCE_API_CONF DEFAULT known_stores "glance.store.filesystem.Store, glance.store.http.Store, glance.store.swift.Store"
     fi
 
     cp -p $GLANCE_DIR/etc/glance-registry-paste.ini $GLANCE_REGISTRY_PASTE_INI