diff --git a/gtk/gtkcssdimensionvalueprivate.h b/gtk/gtkcssdimensionvalueprivate.h
index f13a9281bb..fea2a919ef 100644
--- a/gtk/gtkcssdimensionvalueprivate.h
+++ b/gtk/gtkcssdimensionvalueprivate.h
@@ -26,7 +26,7 @@ G_BEGIN_DECLS
 
 GtkCssValue *   gtk_css_dimension_value_new         (double                  value,
                                                      GtkCssUnit              unit);
-/* This function implemented in gtkcssparser.c */
+
 GtkCssValue *   gtk_css_dimension_value_parse       (GtkCssParser           *parser,
                                                      GtkCssNumberParseFlags  flags);