diff --git a/gtk/inspector/window.ui b/gtk/inspector/window.ui
index 1072c3fd33..6162ff67b0 100644
--- a/gtk/inspector/window.ui
+++ b/gtk/inspector/window.ui
@@ -242,7 +242,7 @@
                           <object class="GtkInspectorClassesList" id="classes_list"/>
                           <packing>
                             <property name="name">css-classes</property>
-                            <property name="title" translatable="yes">CSS Classes</property>
+                            <property name="title" translatable="yes">Style Classes</property>
                           </packing>
                         </child>
                         <child>
@@ -258,7 +258,7 @@
                           </object>
                           <packing>
                             <property name="name">css</property>
-                            <property name="title" translatable="yes">Custom CSS</property>
+                            <property name="title" translatable="yes">CSS</property>
                           </packing>
                         </child>
                         <child>
@@ -339,7 +339,7 @@
           </object>
           <packing>
             <property name="name">css</property>
-            <property name="title" translatable="yes">Custom CSS</property>
+            <property name="title" translatable="yes">CSS</property>
           </packing>
         </child>
         <child>
diff --git a/gtk/inspector/window.ui.h b/gtk/inspector/window.ui.h
index 5d1ad7b047..e1de5c1630 100644
--- a/gtk/inspector/window.ui.h
+++ b/gtk/inspector/window.ui.h
@@ -9,9 +9,9 @@ N_("Signals");
 N_("Child Properties");
 N_("Hierarchy");
 N_("Selector");
-N_("CSS Classes");
+N_("Style Classes");
 N_("Style Properties");
-N_("Custom CSS");
+N_("CSS");
 N_("Size Groups");
 N_("Data");
 N_("Actions");
@@ -20,6 +20,6 @@ N_("Gestures");
 N_("Objects");
 N_("Statistics");
 N_("Resources");
-N_("Custom CSS");
+N_("CSS");
 N_("Visual");
 N_("General");