diff --git a/source/web/swat.c b/source/web/swat.c
index a67a2f8db00..e535106f260 100644
--- a/source/web/swat.c
+++ b/source/web/swat.c
@@ -198,7 +198,7 @@ static void show_parameter(int snum, struct parm_struct *parm)
 		ptr = lp_local_ptr(snum, ptr);
 	}
 
-	printf("<tr><td>%s</td><td>", get_parm_translated(stripspaceupper(parm->label), _("Help"), parm->label));
+	d_printf("<tr><td>%s</td><td>", get_parm_translated(stripspaceupper(parm->label), _("Help"), parm->label));
 	switch (parm->type) {
 	case P_CHAR:
 		d_printf("<input type=text size=2 name=\"parm_%s\" value=\"%c\">",