diff --git a/panels/background/cc-background-panel.ui b/panels/background/cc-background-panel.ui
index 71621a17b..7efbb64a9 100644
--- a/panels/background/cc-background-panel.ui
+++ b/panels/background/cc-background-panel.ui
@@ -18,6 +18,7 @@
                     <property name="tightening_threshold">300</property>
                     <child>
                       <object class="GtkGrid">
+                        <property name="column-homogeneous">True</property>
                         <property name="column-spacing">24</property>
                         <property name="row-spacing">12</property>
                         <property name="margin-start">12</property>