diff --git a/Makefile b/Makefile
index 07add8e..dd2c8e2 100644
--- a/Makefile
+++ b/Makefile
@@ -7,7 +7,7 @@ chown:
 
 ci: full-clean default
 
-build_%: download update_user-config venv
+build_%: download update_user-config_$* venv
 	cd tasmota && ../venv/bin/platformio run -e $*
 	mkdir -p build
 	cp tasmota/.pioenvs/$*/firmware.bin build/$*.bin
@@ -22,8 +22,8 @@ download:
 full-clean: clean
 	rm -rf build
 
-update_user-config: venv
-	./venv/bin/python update.py
+update_user-config_%: venv
+	./venv/bin/python update.py config_$*.yml
 	cd tasmota && git --no-pager diff -w sonoff/user_config.h
 
 venv:
diff --git a/config.yml b/config_sonoff.yml
similarity index 100%
rename from config.yml
rename to config_sonoff.yml
diff --git a/update.py b/update.py
index d43720e..d91684c 100644
--- a/update.py
+++ b/update.py
@@ -2,6 +2,7 @@
 # -*- coding: utf-8 -*-
 
 import os
+import sys
 
 import yaml
 
@@ -25,7 +26,7 @@ def get_line(param, content, comment):
 
 
 def main():
-    cfg = yaml.load(open('config.yml'))
+    cfg = yaml.load(open(sys.argv[1]))
     config = open('tasmota/sonoff/user_config.h').read().split('\n')
 
     for (i, line) in enumerate(config):