diff --git a/gtk/inspector/general.ui b/gtk/inspector/general.ui
index 27e117ae9c..54fe6d93d2 100644
--- a/gtk/inspector/general.ui
+++ b/gtk/inspector/general.ui
@@ -825,7 +825,18 @@
                             <property name="model">
                               <object class="GtkNoSelection">
                                 <property name="model">
-                                  <object class="GtkStringList" id="gl_extensions_list" />
+                                  <object class="GtkSortListModel">
+                                    <property name="sorter">
+                                      <object class="GtkStringSorter">
+                                        <property name='expression'>
+                                          <lookup name='string' type='GtkStringObject' />
+                                        </property>
+                                      </object>
+                                    </property>
+                                    <property name="model">
+                                      <object class="GtkStringList" id="gl_extensions_list" />
+                                    </property>
+                                  </object>
                                 </property>
                               </object>
                             </property>
@@ -878,7 +889,18 @@
                             <property name="model">
                               <object class="GtkNoSelection">
                                 <property name="model">
-                                  <object class="GtkStringList" id="egl_extensions_list" />
+                                  <object class="GtkSortListModel">
+                                    <property name="sorter">
+                                      <object class="GtkStringSorter">
+                                        <property name='expression'>
+                                          <lookup name='string' type='GtkStringObject' />
+                                        </property>
+                                      </object>
+                                    </property>
+                                    <property name="model">
+                                      <object class="GtkStringList" id="egl_extensions_list" />
+                                    </property>
+                                  </object>
                                 </property>
                               </object>
                             </property>