diff --git a/tests/shells/test_fish.py b/tests/shells/test_fish.py
index ff627a4..2384dad 100644
--- a/tests/shells/test_fish.py
+++ b/tests/shells/test_fish.py
@@ -87,8 +87,11 @@ class TestFish(object):
 
     def test_app_alias_alter_history(self, settings, shell):
         settings.alter_history = True
-        assert 'builtin history delete' in shell.app_alias('FUCK')
-        assert 'builtin history merge' in shell.app_alias('FUCK')
+        assert (
+            'builtin history delete --exact --case-sensitive -- $fucked_up_command\n'
+            in shell.app_alias('FUCK')
+        )
+        assert 'builtin history merge\n' in shell.app_alias('FUCK')
         settings.alter_history = False
         assert 'builtin history delete' not in shell.app_alias('FUCK')
         assert 'builtin history merge' not in shell.app_alias('FUCK')
diff --git a/thefuck/shells/fish.py b/thefuck/shells/fish.py
index 5147819..eb7e915 100644
--- a/thefuck/shells/fish.py
+++ b/thefuck/shells/fish.py
@@ -52,7 +52,7 @@ class Fish(Generic):
         if settings.alter_history:
             alter_history = ('    builtin history delete --exact'
                              ' --case-sensitive -- $fucked_up_command\n'
-                             '    builtin history merge ^ /dev/null\n')
+                             '    builtin history merge\n')
         else:
             alter_history = ''
         # It is VERY important to have the variables declared WITHIN the alias