diff --git a/docs/reference/config.md b/docs/reference/config.md
index 9baa4c7801..9ba8bcd388 100644
--- a/docs/reference/config.md
+++ b/docs/reference/config.md
@@ -21,7 +21,7 @@ sql:
   gen:
     go:
       package: "authors"
-      out: "mysql
+      out: "mysql"
 ```
 
 ### sql