diff --git a/resources/default_tweaks.py b/resources/default_tweaks.py
index 55b8f82c48..01a6e8bd75 100644
--- a/resources/default_tweaks.py
+++ b/resources/default_tweaks.py
@@ -336,7 +336,7 @@ doubleclick_on_library_view = 'open_viewer'
 # Example: locale_for_sorting = 'nb' -- sort using Norwegian rules.
 locale_for_sorting =  ''
 
-#: Use one or two columns for custom metadata fields in the edit metadata dialog
+#: Number of columns for custom metadata in the edit metadata dialog
 # Set whether to use one or two columns for custom metadata when editing
 # metadata  one book at a time. If True, then the fields are laid out using two
 # columns. If False, one column is used.
diff --git a/src/calibre/gui2/preferences/tweaks.ui b/src/calibre/gui2/preferences/tweaks.ui
index 7194cce2f9..139f9563ad 100644
--- a/src/calibre/gui2/preferences/tweaks.ui
+++ b/src/calibre/gui2/preferences/tweaks.ui
@@ -46,6 +46,9 @@
        <property name="spacing">
         <number>5</number>
        </property>
+       <property name="uniformItemSizes">
+        <bool>true</bool>
+       </property>
       </widget>
      </item>
      <item>