diff --git a/src/calibre/gui2/convert/toc.ui b/src/calibre/gui2/convert/toc.ui
index 866b47625d..8d48b51ee0 100644
--- a/src/calibre/gui2/convert/toc.ui
+++ b/src/calibre/gui2/convert/toc.ui
@@ -38,7 +38,7 @@
    <item row="6" column="0">
     <widget class="QLabel" name="label_10">
      <property name="text">
-      <string>Number of &amp;links to add to Table of Contents</string>
+      <string>Number of &amp;links to add to Table of Contents:</string>
      </property>
      <property name="buddy">
       <cstring>opt_max_toc_links</cstring>