diff --git a/gtk/gtkscale.c b/gtk/gtkscale.c
index 8b22cc0bd5..2223d37f28 100644
--- a/gtk/gtkscale.c
+++ b/gtk/gtkscale.c
@@ -1016,7 +1016,7 @@ gtk_scale_get_property (GObject      *object,
 /**
  * gtk_scale_new:
  * @orientation: the scale’s orientation.
- * @adjustment: (allow-none) (nullable): the #GtkAdjustment which sets the range
+ * @adjustment: (nullable): the #GtkAdjustment which sets the range
  *              of the scale, or %NULL to create a new adjustment.
  *
  * Creates a new #GtkScale.