diff --git a/docs/tutorial/app-oauth-google.md b/docs/tutorial/app-oauth-google.md
index bc42158fe94934b26e9e245a733814f64616e62b..0696103d4908ebe41ba75a519a4316ef6b7049eb 100644
--- a/docs/tutorial/app-oauth-google.md
+++ b/docs/tutorial/app-oauth-google.md
@@ -72,4 +72,3 @@ plus.oauth.getServices(function(services) {
 })
 ```
 
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