diff --git a/ubbctl/ubbctl.c b/ubbctl/ubbctl.c
index f589a0a..de6af81 100644
--- a/ubbctl/ubbctl.c
+++ b/ubbctl/ubbctl.c
@@ -43,7 +43,7 @@ static void show_pins(void)
 		printf("%s%s=", p == pins ? "" : " ", p->name);
 		pin = PIN(p->mask);
 		if (PDFUN & p->mask) {
-			printf("FN");
+			putchar('F');
 		} else if (PDDIR & p->mask) {
 			set = !!(PDDAT & p->mask);
 			if (pin != set)