diff --git a/modules/inspector/prop-list.ui b/modules/inspector/prop-list.ui
index 19dc006897..36c16dcf52 100644
--- a/modules/inspector/prop-list.ui
+++ b/modules/inspector/prop-list.ui
@@ -39,6 +39,8 @@
           <object class="GtkInspectorPropertyCellRenderer" id="value_renderer">
             <property name="scale">0.8</property>
             <property name="editable">True</property>
+            <property name="width-chars">20</property>
+            <property name="ellipsize">end</property>
           </object>
           <attributes>
             <attribute name="text">1</attribute>