diff --git a/boards/px4/fmu-v6x/src/board_config.h b/boards/px4/fmu-v6x/src/board_config.h
index 0924d2a3d1..c6546179c2 100644
--- a/boards/px4/fmu-v6x/src/board_config.h
+++ b/boards/px4/fmu-v6x/src/board_config.h
@@ -129,8 +129,6 @@
 
 /* I2C busses */
 
-#define BOARD_MTD_NUM_EEPROM        2 /* MTD: base_eeprom, imu_eeprom*/
-
 /* Devices on the onboard buses.
  *
  * Note that these are unshifted addresses.