diff --git a/templates/settings.php.j2 b/templates/settings.php.j2
index bd7ad99..331aeda 100644
--- a/templates/settings.php.j2
+++ b/templates/settings.php.j2
@@ -11,6 +11,9 @@ $databases['{{ key }}']['{{ target }}'] = array(
   'database' => '{{ values.database }}',
   'username' => '{{ values.username }}',
   'password' => '{{ values.password }}',
+  'init_commands' => [
+    'isolation_level' => '{{ values.isolevel }}',
+  ],
 );
 
 {% endfor %}