diff --git a/mongodb.module b/mongodb.module
index d670c6c..1fbcd03 100644
--- a/mongodb.module
+++ b/mongodb.module
@@ -27,7 +27,12 @@ function mongodb($alias = 'default') {
   }
   $connection = $connections[$alias];
   $host = $connection['host'];
-  $options = $connection['connection_options'] +  array('connect' => TRUE);
+  if (isset($connection['connection_options'])) {
+    $options = $connection['connection_options'] + array('connect' => TRUE);
+  }
+  else {
+    $options = array('connect' => TRUE);
+  }
   $db = $connection['db'];
   if (!isset($mongo_objects[$host][$db])) {
     $mongo = new Mongo($host, $options);