diff --git a/src/calibre/gui2/dialogs/edit_authors_dialog.ui b/src/calibre/gui2/dialogs/edit_authors_dialog.ui
index 35abc5dac5..7fe965cc23 100644
--- a/src/calibre/gui2/dialogs/edit_authors_dialog.ui
+++ b/src/calibre/gui2/dialogs/edit_authors_dialog.ui
@@ -78,22 +78,22 @@
     </widget>
    </item>
    <item>
-    <layout class="QHBoxLayout" name="horizontalLayout">
-     <item>
+    <layout class="QGridLayout">
+     <item row="0" column="0">
       <widget class="QPushButton" name="sort_by_author">
        <property name="text">
         <string>Sort by author</string>
        </property>
       </widget>
      </item>
-     <item>
+     <item row="0" column="1">
       <widget class="QPushButton" name="sort_by_author_sort">
        <property name="text">
         <string>Sort by author sort</string>
        </property>
       </widget>
      </item>
-     <item>
+     <item row="1" column="0">
       <widget class="QPushButton" name="recalc_author_sort">
        <property name="toolTip">
         <string>Reset all the author sort values to a value automatically
@@ -105,7 +105,7 @@ generated can be controlled via Preferences-&gt;Advanced-&gt;Tweaks</string>
        </property>
       </widget>
      </item>
-     <item>
+     <item row="1" column="1">
       <widget class="QPushButton" name="auth_sort_to_author">
        <property name="toolTip">
         <string>Copy author sort to author for every author. You typically use this button
@@ -116,20 +116,7 @@ after changing Preferences-&gt;Advanced-&gt;Tweaks-&gt;Author sort name algorith
        </property>
       </widget>
      </item>
-     <item>
-      <spacer name="horizontalSpacer_3">
-       <property name="orientation">
-        <enum>Qt::Horizontal</enum>
-       </property>
-       <property name="sizeHint" stdset="0">
-        <size>
-         <width>40</width>
-         <height>20</height>
-        </size>
-       </property>
-      </spacer>
-     </item>
-     <item>
+     <item row="1" column="2">
       <widget class="QDialogButtonBox" name="buttonBox">
        <property name="sizePolicy">
         <sizepolicy hsizetype="Minimum" vsizetype="Fixed">