diff --git a/qutebrowser/completion/models/completionmodel.py b/qutebrowser/completion/models/completionmodel.py
index a97af2342..778e0cac9 100644
--- a/qutebrowser/completion/models/completionmodel.py
+++ b/qutebrowser/completion/models/completionmodel.py
@@ -22,7 +22,6 @@
 from PyQt5.QtCore import Qt, QModelIndex, QAbstractItemModel
 
 from qutebrowser.utils import log, qtutils
-from qutebrowser.commands import cmdexc
 
 
 class CompletionModel(QAbstractItemModel):
diff --git a/qutebrowser/completion/models/miscmodels.py b/qutebrowser/completion/models/miscmodels.py
index 00fabb031..167eccde8 100644
--- a/qutebrowser/completion/models/miscmodels.py
+++ b/qutebrowser/completion/models/miscmodels.py
@@ -92,7 +92,6 @@ def buffer():
 
     Used for switching the buffer command.
     """
-
     def delete_buffer(data):
         """Close the selected tab."""
         win_id, tab_index = data[0].split('/')
diff --git a/tests/unit/completion/test_completionmodel.py b/tests/unit/completion/test_completionmodel.py
index 5f4670f97..3439400cb 100644
--- a/tests/unit/completion/test_completionmodel.py
+++ b/tests/unit/completion/test_completionmodel.py
@@ -27,7 +27,7 @@ import pytest
 from PyQt5.QtCore import QModelIndex
 
 from qutebrowser.completion.models import completionmodel, listcategory
-from qutebrowser.commands import cmdexc
+from qutebrowser.utils import qtutils
 
 
 @hypothesis.given(strategies.lists(min_size=0, max_size=3,
@@ -91,5 +91,5 @@ def test_delete_cur_item():
 def test_delete_cur_item_no_cat():
     """Test completion_item_del with no selected category."""
     model = completionmodel.CompletionModel()
-    with pytest.raises(cmdexc.CommandError, match='No category selected'):
+    with pytest.raises(qtutils.QtValueError):
         model.delete_cur_item(QModelIndex())
diff --git a/tests/unit/completion/test_listcategory.py b/tests/unit/completion/test_listcategory.py
index d8d35ea3c..377d9abb7 100644
--- a/tests/unit/completion/test_listcategory.py
+++ b/tests/unit/completion/test_listcategory.py
@@ -25,35 +25,26 @@ from helpers import utils
 from qutebrowser.completion.models import listcategory
 
 
-@pytest.mark.parametrize('pattern, filter_cols, before, after', [
-    ('foo', [0],
-     [('foo', '', ''), ('bar', '', '')],
-     [('foo', '', '')]),
+@pytest.mark.parametrize('pattern, before, after', [
+    ('foo',
+     [('foo', ''), ('bar', '')],
+     [('foo', '')]),
 
-    ('foo', [0],
-     [('foob', '', ''), ('fooc', '', ''), ('fooa', '', '')],
-     [('fooa', '', ''), ('foob', '', ''), ('fooc', '', '')]),
+    ('foo',
+     [('foob', ''), ('fooc', ''), ('fooa', '')],
+     [('fooa', ''), ('foob', ''), ('fooc', '')]),
 
     # prefer foobar as it starts with the pattern
-    ('foo', [0],
-     [('barfoo', '', ''), ('foobar', '', '')],
-     [('foobar', '', ''), ('barfoo', '', '')]),
+    ('foo',
+     [('barfoo', ''), ('foobar', '')],
+     [('foobar', ''), ('barfoo', '')]),
 
-    ('foo', [1],
-     [('foo', 'bar', ''), ('bar', 'foo', '')],
-     [('bar', 'foo', '')]),
-
-    ('foo', [0, 1],
-     [('foo', 'bar', ''), ('bar', 'foo', ''), ('bar', 'bar', '')],
-     [('foo', 'bar', ''), ('bar', 'foo', '')]),
-
-    ('foo', [0, 1, 2],
-     [('foo', '', ''), ('bar', '')],
-     [('foo', '', '')]),
+    ('foo',
+     [('foo', 'bar'), ('bar', 'foo'), ('bar', 'bar')],
+     [('foo', 'bar'), ('bar', 'foo')]),
 ])
-def test_set_pattern(pattern, filter_cols, before, after):
+def test_set_pattern(pattern, before, after):
     """Validate the filtering and sorting results of set_pattern."""
-    cat = listcategory.ListCategory('Foo', before,
-                                    columns_to_filter=filter_cols)
+    cat = listcategory.ListCategory('Foo', before)
     cat.set_pattern(pattern)
     utils.validate_model(cat, after)