diff --git a/gtk/gtkfontchooserwidget.c b/gtk/gtkfontchooserwidget.c
index a0dcc94e31..16f964dd0b 100644
--- a/gtk/gtkfontchooserwidget.c
+++ b/gtk/gtkfontchooserwidget.c
@@ -537,7 +537,7 @@ gtk_font_chooser_widget_init (GtkFontChooserWidget *fontchooser)
 
   /* Set the upper values of the spin/scale with G_MAXINT / PANGO_SCALE */
   gtk_spin_button_set_range (GTK_SPIN_BUTTON (priv->size_spin),
-			     0.0, (gdouble)(G_MAXINT / PANGO_SCALE));
+			     1.0, (gdouble)(G_MAXINT / PANGO_SCALE));
   gtk_adjustment_set_upper (gtk_range_get_adjustment (GTK_RANGE (priv->size_slider)),
 			    (gdouble)(G_MAXINT / PANGO_SCALE));