diff --git a/thefuck/shells/fish.py b/thefuck/shells/fish.py
index 7284867b..34fdf7b2 100644
--- a/thefuck/shells/fish.py
+++ b/thefuck/shells/fish.py
@@ -50,10 +50,6 @@ class Fish(Generic):
         else:
             return command_script
 
-    def from_shell(self, command_script):
-        """Prepares command before running in app."""
-        return self._expand_aliases(command_script)
-
     def _get_history_file_name(self):
         return os.path.expanduser('~/.config/fish/fish_history')