diff --git a/makefiles/tools/riotboot_serial.inc.mk b/makefiles/tools/riotboot_serial.inc.mk
index 46d9bd7c9d..d42e9ac1ed 100644
--- a/makefiles/tools/riotboot_serial.inc.mk
+++ b/makefiles/tools/riotboot_serial.inc.mk
@@ -2,7 +2,7 @@ RIOTBOOT_SERIAL := $(RIOTTOOLS)/riotboot_serial/riotboot_serial
 
 FLASHER   ?= $(RIOTBOOT_SERIAL)
 FLASHFILE ?= $(HEXFILE)
-PROG_BAUD ?= 115200
+PROG_BAUD ?= $(BAUD)
 FFLAGS    ?= $(FLASHFILE) $(PORT) $(PROG_BAUD)
 
 ROM_OFFSET ?= $(RIOTBOOT_LEN)