diff --git a/docs/tips_tricks.txt b/docs/tips_tricks.txt
index ad2038f..6f77da7 100644
--- a/docs/tips_tricks.txt
+++ b/docs/tips_tricks.txt
@@ -30,4 +30,4 @@ Within a permission class, you can refer to Django's basic permissions::
             if foo and self.change_flatpage():
                 # ...
 
-    authority.register(Flatpage, FlagpagePermisson)
\ No newline at end of file
+    authority.register(Flatpage, FlagpagePermisson)