diff --git a/platformio.ini b/platformio.ini
index f8f9c87..124c982 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -40,8 +40,8 @@ build_flags =
 	-DUSER_SSID=\""\""           # =\""myssid\""
 	-DUSER_SSID_PWD=\""\""       # =\""mypwd\""	
 	-DCFG_APPVER="\"1.2.0\""
-	-DCFG_GITREV=\""beta-3\""
-	#!python script/git_rev.py
+	#-DCFG_GITREV=\""beta-3\""
+	!python script/git_rev.py
 lib_deps =
 	# Using local copy of these libraries
   # https://github.com/mp-se/i2cdevlib.git#<document>