diff --git a/stempayload/Payload_BME280_MPU6050_XS_Extended/payload_extension.c b/stempayload/Payload_BME280_MPU6050_XS_Extended/payload_extension.cpp
similarity index 100%
rename from stempayload/Payload_BME280_MPU6050_XS_Extended/payload_extension.c
rename to stempayload/Payload_BME280_MPU6050_XS_Extended/payload_extension.cpp