diff --git a/src/calibre/gui2/preferences/behavior.ui b/src/calibre/gui2/preferences/behavior.ui
index 61620e4e21..cb7f716dad 100644
--- a/src/calibre/gui2/preferences/behavior.ui
+++ b/src/calibre/gui2/preferences/behavior.ui
@@ -279,6 +279,12 @@ If not checked, the values can be Yes or No.</string>
    </item>
    <item row="8" column="1">
     <widget class="QPushButton" name="reset_confirmation_button">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
      <property name="text">
       <string>Reset all disabled &amp;confirmation dialogs</string>
      </property>
diff --git a/src/calibre/gui2/preferences/search.ui b/src/calibre/gui2/preferences/search.ui
index 28735f09e0..9ab23e110d 100644
--- a/src/calibre/gui2/preferences/search.ui
+++ b/src/calibre/gui2/preferences/search.ui
@@ -200,6 +200,12 @@ to be shown as user categories</string>
    </item>
    <item row="5" column="0" colspan="2">
     <widget class="QPushButton" name="clear_history_button">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
      <property name="toolTip">
       <string>Clear search histories from all over calibre. Including the book list, e-book viewer, fetch news dialog, etc.</string>
      </property>