diff --git a/README.md b/README.md
index ec2dca6dd..8d2463ad3 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ cd emqttd && make && make dist
 
 ## GetStarted
 
-Read [emqtt wiki](https://github.com/emqtt/emqttd/wiki) for detaied installation and configuration guide.
+Read [emqtt wiki](https://github.com/emqtt/emqttd/wiki) for detailed installation and configuration guide.
 
 ## Benchmark
 
diff --git a/plugins/emqttd_auth_mysql/.placehodler b/plugins/emqttd_auth_mysql/.placehodler
deleted file mode 100644
index e69de29bb..000000000
diff --git a/rel/files/acl.config b/rel/files/acl.config
index e17d28cef..c1985f1d4 100644
--- a/rel/files/acl.config
+++ b/rel/files/acl.config
@@ -1,6 +1,6 @@
 %%%-----------------------------------------------------------------------------
 %% 
-%% [ACL Design](https://github.com/emqtt/emqttd/wiki/ACL-Design)
+%% [ACL](https://github.com/emqtt/emqttd/wiki/ACL)
 %% 
 %% -type who() :: all | binary() |
 %%               {ipaddr, esockd_access:cidr()} |