diff --git a/cpu/blackfin/initcode.c b/cpu/blackfin/initcode.c
index aba00e0fb9..c0fe2c65a6 100644
--- a/cpu/blackfin/initcode.c
+++ b/cpu/blackfin/initcode.c
@@ -92,7 +92,7 @@ static inline void serial_putc(char c)
 		return;
 
 	if (c == '\n')
-		*pUART_THR = '\r';
+		serial_putc('\r');
 
 	*pUART_THR = c;