diff --git a/User_Code/module/periph/imu/BMI088/BMI088Middleware.h b/User_Code/module/periph/imu/BMI088/BMI088Middleware.h
index 7e2754b..1ec9d9b 100644
--- a/User_Code/module/periph/imu/BMI088/BMI088Middleware.h
+++ b/User_Code/module/periph/imu/BMI088/BMI088Middleware.h
@@ -23,7 +23,7 @@ extern void BMI088_GYRO_NS_L(void);
 
 extern void BMI088_GYRO_NS_H(void);
 
-extern uint8_t BMI088_read_write_byte(uint8_t reg);
+extern uint8_t BMI088_read_write_byte(uint8_t txdata);
 
 extern SPI_HandleTypeDef *BMI088_SPI;