diff --git a/goffice/graph/gog-guru.ui b/goffice/graph/gog-guru.ui
index de0c8c8..fc9c114 100644
--- a/goffice/graph/gog-guru.ui
+++ b/goffice/graph/gog-guru.ui
@@ -101,6 +101,7 @@
           <object class="GtkNotebook" id="notebook">
             <property name="visible">True</property>
             <property name="can_focus">False</property>
+            <property name="vexpand">True</property>
             <property name="show_tabs">False</property>
             <property name="show_border">False</property>
             <child>

