diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 9e7c813..da65a22 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -39,7 +39,14 @@ jobs:
         0x1000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-usb-gw-m5atom/build/bbn-nmea2000-usb-gw-m5atom.ino.bootloader.bin" 
         0x8000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-usb-gw-m5atom/build/bbn-nmea2000-usb-gw-m5atom.ino.partitions.bin" 
         0xe000 "$HOME/.arduino15/packages/esp32/hardware/esp32/2.0.15/tools/partitions/boot_app0.bin" 
-        0x10000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-usb-gw-m5atom/build/bbn-nmea2000-usb-gw-m5atom.ino.bin" 
+        0x10000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-usb-gw-m5atom/build/bbn-nmea2000-usb-gw-m5atom.ino.bin"; 
+        python3 "$HOME/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool.py" 
+        --chip esp32 merge_bin -o /home/runner/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-env-m5atom/build/bbn-nmea2000-env-m5atom-firmware.bin 
+        --flash_mode dio --flash_freq 80m --flash_size 16MB 
+        0x1000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-env-m5atom/build/bbn-nmea2000-env-m5atom.ino.bootloader.bin" 
+        0x8000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-env-m5atom/build/bbn-nmea2000-env-m5atom.ino.partitions.bin" 
+        0xe000 "$HOME/.arduino15/packages/esp32/hardware/esp32/2.0.15/tools/partitions/boot_app0.bin" 
+        0x10000 "$HOME/work/bbn-nmea200-m5atom/bbn-nmea200-m5atom/bbn-nmea2000-env-m5atom/build/bbn-nmea2000-env-m5atom.ino.bin"; 
         
     - name: Make zip
       run: |