diff --git a/qutebrowser/completion/models/instances.py b/qutebrowser/completion/models/instances.py
index c92225539..568607b79 100644
--- a/qutebrowser/completion/models/instances.py
+++ b/qutebrowser/completion/models/instances.py
@@ -27,8 +27,7 @@ Module attributes:
 
 import functools
 
-from qutebrowser.completion.models import (miscmodels, urlmodel, configmodel,
-                                           base)
+from qutebrowser.completion.models import miscmodels, urlmodel, configmodel
 from qutebrowser.utils import objreg, usertypes, log, debug
 from qutebrowser.config import configdata
 
@@ -115,13 +114,6 @@ def init_session_completion():
     _instances[usertypes.Completion.sessions] = model
 
 
-def _init_empty_completion():
-    """Initialize empty completion model."""
-    log.completion.debug("Initializing empty completion.")
-    if usertypes.Completion.empty not in _instances:
-        _instances[usertypes.Completion.empty] = base.BaseCompletionModel()
-
-
 INITIALIZERS = {
     usertypes.Completion.command: _init_command_completion,
     usertypes.Completion.helptopic: _init_helptopic_completion,
@@ -133,7 +125,6 @@ INITIALIZERS = {
     usertypes.Completion.quickmark_by_name: init_quickmark_completions,
     usertypes.Completion.bookmark_by_url: init_bookmark_completions,
     usertypes.Completion.sessions: init_session_completion,
-    usertypes.Completion.empty: _init_empty_completion,
 }
 
 
diff --git a/qutebrowser/config/parsers/keyconf.py b/qutebrowser/config/parsers/keyconf.py
index b2596fb62..e8e7cc6dc 100644
--- a/qutebrowser/config/parsers/keyconf.py
+++ b/qutebrowser/config/parsers/keyconf.py
@@ -152,7 +152,6 @@ class KeyConfigParser(QObject):
 
     @cmdutils.register(instance='key-config', maxsplit=1, no_cmd_split=True)
     @cmdutils.argument('win_id', win_id=True)
-    @cmdutils.argument('key', completion=usertypes.Completion.empty)
     @cmdutils.argument('command', completion=usertypes.Completion.command)
     def bind(self, key, win_id, command=None, *, mode='normal', force=False):
         """Bind a key to a command.
diff --git a/qutebrowser/utils/usertypes.py b/qutebrowser/utils/usertypes.py
index 65c3c31e2..1cd1f0385 100644
--- a/qutebrowser/utils/usertypes.py
+++ b/qutebrowser/utils/usertypes.py
@@ -238,8 +238,7 @@ KeyMode = enum('KeyMode', ['normal', 'hint', 'command', 'yesno', 'prompt',
 # Available command completions
 Completion = enum('Completion', ['command', 'section', 'option', 'value',
                                  'helptopic', 'quickmark_by_name',
-                                 'bookmark_by_url', 'url', 'tab', 'sessions',
-                                 'empty'])
+                                 'bookmark_by_url', 'url', 'tab', 'sessions'])
 
 
 # Exit statuses for errors. Needs to be an int for sys.exit.
diff --git a/tests/unit/completion/test_completer.py b/tests/unit/completion/test_completer.py
index 8e9273a90..f3567674e 100644
--- a/tests/unit/completion/test_completer.py
+++ b/tests/unit/completion/test_completer.py
@@ -112,7 +112,6 @@ def cmdutils_patch(monkeypatch, stubs):
         pass
 
     @cmdutils.argument('win_id', win_id=True)
-    @cmdutils.argument('key', completion=usertypes.Completion.empty)
     @cmdutils.argument('command', completion=usertypes.Completion.command)
     def bind(key, win_id, command=None, *, mode='normal', force=False):
         """docstring!"""
@@ -171,10 +170,10 @@ def _validate_cmd_prompt(cmd, txt):
     (':help |', usertypes.Completion.helptopic),
     (':help     |', usertypes.Completion.helptopic),
     (':open |', usertypes.Completion.url),
-    (':bind |', usertypes.Completion.empty),
+    (':bind |', None),
     (':bind <c-x> |', usertypes.Completion.command),
     (':bind <c-x> foo|', usertypes.Completion.command),
-    (':bind <c-x>| foo', usertypes.Completion.empty),
+    (':bind <c-x>| foo', None),
     (':set| general ', usertypes.Completion.command),
     (':|set general ', usertypes.Completion.command),
     (':set gene|ral ignore-case', usertypes.Completion.section),