diff --git a/gtk/ui/gtkcoloreditor.ui b/gtk/ui/gtkcoloreditor.ui
index 664b1b5f29..32526ea86c 100644
--- a/gtk/ui/gtkcoloreditor.ui
+++ b/gtk/ui/gtkcoloreditor.ui
@@ -97,7 +97,7 @@
                 <property name="scale_type">1</property>
                 <property name="has_origin">False</property>
                 <style>
-                  <class name="scale-has-marks-above"/>
+                  <class name="marks-before"/>
                 </style>
                 <signal name="popup-menu" handler="popup_edit" swapped="no"/>
               </object>