diff --git a/arch/arm/src/common/up_puts.c b/arch/arm/src/common/up_puts.c
index 6a98153ec0..dc8c920f5c 100644
--- a/arch/arm/src/common/up_puts.c
+++ b/arch/arm/src/common/up_puts.c
@@ -71,6 +71,6 @@ void up_puts(const char *str)
 {
   while(*str)
     {
-      up_putc(*str);
+      up_putc(*str++);
     }
 }