diff --git a/boards/seeeduino_arch-pro/Makefile.include b/boards/seeeduino_arch-pro/Makefile.include
index aa957e7bcd..3ed4dbf9e0 100644
--- a/boards/seeeduino_arch-pro/Makefile.include
+++ b/boards/seeeduino_arch-pro/Makefile.include
@@ -10,8 +10,8 @@ include $(RIOTMAKE)/tools/serial.inc.mk
 
 DEBUG_ADAPTER ?= dap
 
-# this board uses openocd
-FFLAGS ?= flash $(HEXFILE)
+# this board uses openocd with an HEXFILE
+FLASHFILE ?= $(HEXFILE)
 include $(RIOTMAKE)/tools/openocd.inc.mk
 
 # generate image checksum from hex file