diff --git a/packages/strapi-bookshelf/lib/utils/connectivity.js b/packages/strapi-bookshelf/lib/utils/connectivity.js
index aa5f79da7c..70be3ef3b5 100644
--- a/packages/strapi-bookshelf/lib/utils/connectivity.js
+++ b/packages/strapi-bookshelf/lib/utils/connectivity.js
@@ -10,7 +10,7 @@ const logger = require('strapi-utils').logger;
 module.exports = (scope, success, error) => {
   const knex  = require(path.resolve(`${scope.rootPath}/node_modules/knex`))({
     client: scope.client.module,
-    connection: Object.assign(scope.database.settings, {
+    connection: Object.assign({}, scope.database.settings, {
       user: scope.database.settings.username
     })
   });