diff --git a/gramps/plugins/tool/relcalc.glade b/gramps/plugins/tool/relcalc.glade
index 0fe40edb0..e8f55816f 100644
--- a/gramps/plugins/tool/relcalc.glade
+++ b/gramps/plugins/tool/relcalc.glade
@@ -73,7 +73,6 @@
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="tooltip_text" translatable="yes">Select a person to determine the relationship</property>
-                    <property name="vexpand">True</property>
                     <property name="rules_hint">True</property>
                     <child internal-child="selection">
                       <object class="GtkTreeSelection" id="treeview-selection1"/>
@@ -110,7 +109,7 @@
             </child>
           </object>
           <packing>
-            <property name="expand">False</property>
+            <property name="expand">True</property>
             <property name="fill">True</property>
             <property name="position">1</property>
           </packing>