diff --git a/subprojects/extensions-app/data/ui/extensions-window.ui b/subprojects/extensions-app/data/ui/extensions-window.ui
index e849b48f1..f96441c48 100644
--- a/subprojects/extensions-app/data/ui/extensions-window.ui
+++ b/subprojects/extensions-app/data/ui/extensions-window.ui
@@ -234,6 +234,7 @@
             <child>
               <object class="GtkBox">
                 <property name="orientation">vertical</property>
+                <property name="valign">center</property>
                 <child>
                   <object class="GtkLabel">
                     <property name="halign">start</property>