diff --git a/src/gtr-header-dialog.ui b/src/gtr-header-dialog.ui
index 43d2db04056964e85a6874a3daec8b75fddc9d2d..2f4820c14fcbd9d630d47b126e9d37cc1a45b3b0 100644
--- a/src/gtr-header-dialog.ui
+++ b/src/gtr-header-dialog.ui
@@ -127,7 +127,8 @@
                           <object class="GtkLabel" id="language_code_label">
                             <property name="visible">True</property>
                             <property name="can_focus">False</property>
-                            <property name="label" translatable="yes">Language Code:</property>
+                            <property name="label" translatable="yes">Language _code:</property>
+                            <property name="use_underline">True</property>
                             <property name="xalign">0</property>
                           </object>
                           <packing>