diff --git a/platformio.ini b/platformio.ini
index e5785a5..6b79d77 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -15,7 +15,7 @@ board = wt32-eth01
 framework = arduino
 lib_deps = siwats/ESPMegaPROR3@^2.8.0
 monitor_speed = 115200
-build_flags = -DCORE_DEBUG_LEVEL=0 -DSW_VERSION='"3.0.1-duct"' -DBOARD_MODEL='"ESPMegaPRO R3.3c"' -DAC_TYPE=AC_TYPE_DUCTED
+build_flags = -DCORE_DEBUG_LEVEL=0 -DSW_VERSION='"cud-3.0.1-duct"' -DBOARD_MODEL='"ESPMegaPRO R3.3c"' -DAC_TYPE=AC_TYPE_DUCTED
 
 ; Ceiling A/C Variant (and newer ducted models)
 [env:satitm-ceiling]
@@ -24,4 +24,4 @@ board = wt32-eth01
 framework = arduino
 lib_deps = siwats/ESPMegaPROR3@^2.8.0
 monitor_speed = 115200
-build_flags = -DCORE_DEBUG_LEVEL=0 -DSW_VERSION='"3.0.1-ceiling"' -DBOARD_MODEL='"ESPMegaPRO R3.3c"' -DAC_TYPE=AC_TYPE_CEILING
\ No newline at end of file
+build_flags = -DCORE_DEBUG_LEVEL=0 -DSW_VERSION='"cud-3.0.1-ceiling"' -DBOARD_MODEL='"ESPMegaPRO R3.3c"' -DAC_TYPE=AC_TYPE_CEILING
\ No newline at end of file