diff --git a/subprojects/extensions-app/data/ui/extensions-window.ui b/subprojects/extensions-app/data/ui/extensions-window.ui
index 19d3d2093..dd3692448 100644
--- a/subprojects/extensions-app/data/ui/extensions-window.ui
+++ b/subprojects/extensions-app/data/ui/extensions-window.ui
@@ -270,7 +270,7 @@
                   <object class="GtkLabel">
                     <property name="visible">True</property>
                     <property name="halign">start</property>
-                    <property name="label">Extension Updates Ready</property>
+                    <property name="label" translatable="yes">Extension Updates Ready</property>
                     <attributes>
                       <attribute name="weight" value="bold"/>
                     </attributes>