upate syntax error in english doc
diff --git a/docs/docs/modules/navigator.md b/docs/docs/modules/navigator.md
index 34e37b6..4e860e5 100644
--- a/docs/docs/modules/navigator.md
+++ b/docs/docs/modules/navigator.md
@@ -24,7 +24,7 @@
   url: bundleUrl,
   animated: "true"
 }, event => {
-  modal.toast({ message: 'callback: ' + event })
+  modal.toast({ message: 'callback: ' + event)
 })
 ```
 
@@ -43,7 +43,7 @@
 var navigator = weex.requireModule('navigator')
 var modal = weex.requireModule('modal')
 navigator.pop({ animated: "true"}, event => {
-      	modal.toast({ message: 'callback: ' + event })
+      	modal.toast({ message: 'callback: ' + event)
 })
 ```