diff --git a/gen_release.py b/gen_release.py
index 24fa03b..2c07d5e 100644
--- a/gen_release.py
+++ b/gen_release.py
@@ -89,6 +89,10 @@ for environment in environments:
     else:
         config[f'env:{environment}']['build_flags'] = config[f'env:{environment}']['build_flags'] + f' -DFW_VERSION=\\"{git_branch}_{environment}_{commit_hash}\\"'
 
+# Write the platformio.ini file
+with open(os.path.join(firmware_folder, 'platformio.ini'), 'w') as configfile:
+    config.write(configfile)
+
 # if argument is not supplied, build all environments listed in platformio.ini
 if len(sys.argv) == 1:
     subprocess.run([f'{platformio_path}', 'run','-c',f'{firmware_folder}/platformio.ini'], cwd=current_dir)