diff --git a/src/calibre/gui2/preferences/look_feel.ui b/src/calibre/gui2/preferences/look_feel.ui
index 754f7d4cc5..4b85ace8c7 100644
--- a/src/calibre/gui2/preferences/look_feel.ui
+++ b/src/calibre/gui2/preferences/look_feel.ui
@@ -943,7 +943,7 @@ if you never want subcategories</string>
        <item row="5" column="1">
         <widget class="QLineEdit" name="opt_cover_browser_title_template">
          <property name="toolTip">
-          <string>The template used to generate the text below the covers. Uses the same syntax as save templates. Defaults to just the book title.</string>
+			 <string>The template used to generate the text below the covers. Uses the same syntax as save templates. Defaults to just the book title. Note that this setting is per-library, which means that you have to set it again for every different calibre library you use.</string>
          </property>
         </widget>
        </item>