diff --git a/modules/addressbook/ldap-config.ui b/modules/addressbook/ldap-config.ui
index 8756c4a588..99cc668efb 100644
--- a/modules/addressbook/ldap-config.ui
+++ b/modules/addressbook/ldap-config.ui
@@ -234,6 +234,7 @@
         <property name="xalign">0</property>
         <property name="label" translatable="yes">_Port:</property>
         <property name="use_underline">True</property>
+        <property name="mnemonic_widget">port-comboentry</property>
       </object>
       <packing>
         <property name="top_attach">1</property>
@@ -336,6 +337,7 @@
         <property name="xalign">0</property>
         <property name="label" translatable="yes">_Login method:</property>
         <property name="use_underline">True</property>
+        <property name="mnemonic_widget">auth-combobox</property>
       </object>
       <packing>
         <property name="x_options">GTK_FILL</property>
@@ -426,6 +428,7 @@
         <property name="xalign">0</property>
         <property name="label" translatable="yes">_Search scope:</property>
         <property name="use_underline">True</property>
+        <property name="mnemonic_widget">scope-combobox</property>
       </object>
       <packing>
         <property name="top_attach">2</property>