diff --git a/boot/boot_serial/src/boot_serial.c b/boot/boot_serial/src/boot_serial.c
index 72e5ea6e..d0fc865d 100644
--- a/boot/boot_serial/src/boot_serial.c
+++ b/boot/boot_serial/src/boot_serial.c
@@ -673,7 +673,7 @@ boot_serial_output(void)
     totlen = base64_encode(buf, totlen, encoded_buf, 1);
 #endif
     boot_uf->write(encoded_buf, totlen);
-    boot_uf->write("\n\r", 2);
+    boot_uf->write("\n", 1);
     BOOT_LOG_INF("TX");
 }