diff --git a/src/calibre/gui2/dialogs/confirm_delete.ui b/src/calibre/gui2/dialogs/confirm_delete.ui
index c45b180483..e5d35410db 100644
--- a/src/calibre/gui2/dialogs/confirm_delete.ui
+++ b/src/calibre/gui2/dialogs/confirm_delete.ui
@@ -1,7 +1,8 @@
-<ui version="4.0" >
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
  <class>Dialog</class>
- <widget class="QDialog" name="Dialog" >
-  <property name="geometry" >
+ <widget class="QDialog" name="Dialog">
+  <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
@@ -9,51 +10,63 @@
     <height>300</height>
    </rect>
   </property>
-  <property name="windowTitle" >
+  <property name="windowTitle">
    <string>Are you sure?</string>
   </property>
-  <property name="windowIcon" >
-   <iconset resource="../../../../resources/images.qrc" >
+  <property name="windowIcon">
+   <iconset resource="../../../../resources/images.qrc">
     <normaloff>:/images/dialog_warning.png</normaloff>:/images/dialog_warning.png</iconset>
   </property>
-  <layout class="QGridLayout" name="gridLayout" >
-   <item row="0" column="0" >
-    <layout class="QHBoxLayout" name="horizontalLayout" >
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
-      <widget class="QLabel" name="label" >
-       <property name="pixmap" >
-        <pixmap resource="../../../../resources/images.qrc" >:/images/dialog_warning.png</pixmap>
+      <widget class="QLabel" name="label">
+       <property name="pixmap">
+        <pixmap resource="../../../../resources/images.qrc">:/images/dialog_warning.png</pixmap>
        </property>
       </widget>
      </item>
      <item>
-      <widget class="QLabel" name="msg" >
-       <property name="text" >
+      <widget class="QLabel" name="msg">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="minimumSize">
+        <size>
+         <width>300</width>
+         <height>0</height>
+        </size>
+       </property>
+       <property name="text">
         <string>TextLabel</string>
        </property>
-       <property name="wordWrap" >
+       <property name="wordWrap">
         <bool>true</bool>
        </property>
       </widget>
      </item>
     </layout>
    </item>
-   <item row="1" column="0" >
-    <widget class="QCheckBox" name="again" >
-     <property name="text" >
+   <item row="1" column="0">
+    <widget class="QCheckBox" name="again">
+     <property name="text">
       <string>&amp;Show this warning again</string>
      </property>
-     <property name="checked" >
+     <property name="checked">
       <bool>true</bool>
      </property>
     </widget>
    </item>
-   <item row="2" column="0" >
-    <widget class="QDialogButtonBox" name="buttonBox" >
-     <property name="orientation" >
+   <item row="2" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
-     <property name="standardButtons" >
+     <property name="standardButtons">
       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
      </property>
     </widget>
@@ -61,7 +74,7 @@
   </layout>
  </widget>
  <resources>
-  <include location="../../../../resources/images.qrc" />
+  <include location="../../../../resources/images.qrc"/>
  </resources>
  <connections>
   <connection>
@@ -70,11 +83,11 @@
    <receiver>Dialog</receiver>
    <slot>accept()</slot>
    <hints>
-    <hint type="sourcelabel" >
+    <hint type="sourcelabel">
      <x>248</x>
      <y>254</y>
     </hint>
-    <hint type="destinationlabel" >
+    <hint type="destinationlabel">
      <x>157</x>
      <y>274</y>
     </hint>
@@ -86,11 +99,11 @@
    <receiver>Dialog</receiver>
    <slot>reject()</slot>
    <hints>
-    <hint type="sourcelabel" >
+    <hint type="sourcelabel">
      <x>316</x>
      <y>260</y>
     </hint>
-    <hint type="destinationlabel" >
+    <hint type="destinationlabel">
      <x>286</x>
      <y>274</y>
     </hint>