diff --git a/gtk/gtkspinbutton.c b/gtk/gtkspinbutton.c
index fb5ffbf310..72b7934f54 100644
--- a/gtk/gtkspinbutton.c
+++ b/gtk/gtkspinbutton.c
@@ -514,7 +514,7 @@ gtk_spin_button_class_init (GtkSpinButtonClass *class)
    *    adjustment = gtk_spin_button_get_adjustment (spin);
    *    value = (int)gtk_adjustment_get_value (adjustment);
    *    text = g_strdup_printf ("%02d", value);
-   *    gtk_spin_button_set_text (spin, text):
+   *    gtk_editable_set_text (GTK_EDITABLE (spin), text):
    *    g_free (text);
    *
    *    return TRUE;