diff --git a/qutebrowser/completion/completionwidget.py b/qutebrowser/completion/completionwidget.py
index af31143c4..28a3af116 100644
--- a/qutebrowser/completion/completionwidget.py
+++ b/qutebrowser/completion/completionwidget.py
@@ -28,6 +28,7 @@ from PyQt5.QtCore import pyqtSlot, pyqtSignal, Qt, QItemSelectionModel
 
 from qutebrowser.config import config, style
 from qutebrowser.completion import completiondelegate, completer
+from qutebrowser.completion.models.base import BaseCompletionModel
 from qutebrowser.utils import qtutils, objreg, utils
 
 
@@ -100,8 +101,8 @@ class CompletionView(QTreeView):
         # FIXME handle new aliases.
         # objreg.get('config').changed.connect(self.init_command_completion)
 
-        self.column_widths = config.get('completion',
-                                        'base-column-width-percentages')
+        self.column_widths = BaseCompletionModel.COLUMN_WIDTHS
+
         self._delegate = completiondelegate.CompletionItemDelegate(self)
         self.setItemDelegate(self._delegate)
         style.set_register_stylesheet(self)
diff --git a/qutebrowser/completion/models/base.py b/qutebrowser/completion/models/base.py
index 9036df385..1fd7e9460 100644
--- a/qutebrowser/completion/models/base.py
+++ b/qutebrowser/completion/models/base.py
@@ -27,7 +27,6 @@ from PyQt5.QtCore import Qt
 from PyQt5.QtGui import QStandardItemModel, QStandardItem
 
 from qutebrowser.utils import usertypes, qtutils
-from qutebrowser.config import config
 
 
 Role = usertypes.enum('Role', ['sort', 'userdata'], start=Qt.UserRole,
@@ -40,13 +39,17 @@ class BaseCompletionModel(QStandardItemModel):
 
     Used for showing completions later in the CompletionView. Supports setting
     marks and adding new categories/items easily.
+
+    Class Attributes:
+        COLUMN_WIDTHS: The width percentages of the columns used in the
+                        completion view.
     """
 
+    COLUMN_WIDTHS = (20, 70, 10)
+
     def __init__(self, parent=None):
         super().__init__(parent)
         self.setColumnCount(3)
-        self.column_widths = config.get('completion',
-                                        'base-column-width-percentages')
         self.columns_to_filter = [0]
 
     def new_category(self, name, sort=None):
diff --git a/qutebrowser/completion/models/sortfilter.py b/qutebrowser/completion/models/sortfilter.py
index db4e8e425..1e8393087 100644
--- a/qutebrowser/completion/models/sortfilter.py
+++ b/qutebrowser/completion/models/sortfilter.py
@@ -39,6 +39,8 @@ class CompletionFilterModel(QSortFilterProxyModel):
                    Kept as attribute because calling `sourceModel` takes quite
                    a long time for some reason.
         _sort_order: The order to use for sorting if using dumb_sort.
+        column_widths: the width percentages of the columns in the
+                       completion view.
     """
 
     def __init__(self, source, parent=None, *, dumb_sort=None):
@@ -53,7 +55,7 @@ class CompletionFilterModel(QSortFilterProxyModel):
         else:
             self.setSortRole(completion.Role.sort)
             self._sort_order = dumb_sort
-        self.column_widths = source.column_widths
+        self.column_widths = source.COLUMN_WIDTHS
 
     def set_pattern(self, val):
         """Setter for pattern.
diff --git a/qutebrowser/completion/models/urlmodel.py b/qutebrowser/completion/models/urlmodel.py
index b33366f22..ca1ef31fe 100644
--- a/qutebrowser/completion/models/urlmodel.py
+++ b/qutebrowser/completion/models/urlmodel.py
@@ -40,6 +40,8 @@ class UrlCompletionModel(base.BaseCompletionModel):
     TEXT_COLUMN = 1
     TIME_COLUMN = 2
 
+    COLUMN_WIDTHS = (40, 50, 10)
+
     def __init__(self, parent=None):
         super().__init__(parent)
 
@@ -75,8 +77,6 @@ class UrlCompletionModel(base.BaseCompletionModel):
 
         objreg.get('config').changed.connect(self.reformat_timestamps)
 
-        self.column_widths = (40, 50, 10)
-
     def _fmt_atime(self, atime):
         """Format an atime to a human-readable string."""
         fmt = config.get('completion', 'timestamp-format')
diff --git a/qutebrowser/config/configdata.py b/qutebrowser/config/configdata.py
index 19dd18db2..7a1f4f236 100644
--- a/qutebrowser/config/configdata.py
+++ b/qutebrowser/config/configdata.py
@@ -398,11 +398,6 @@ def data(readonly=False):
              "Whether to shrink the completion to be smaller than the "
              "configured size if there are no scrollbars."),
 
-            ('base-column-width-percentages',
-             SettingValue(typ.IntList(), '20,70,10'),
-             "List of width percentages of the base completion columns."
-             "These can be overridden by child classes."),
-
             readonly=readonly
         )),