diff --git a/configs/T4240RDB_defconfig b/configs/T4240RDB_defconfig
index 2595465..095dc93 100644
--- a/configs/T4240RDB_defconfig
+++ b/configs/T4240RDB_defconfig
@@ -33,6 +33,7 @@
 CONFIG_FSL_CAAM=y
 CONFIG_DM_I2C=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
+CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
 CONFIG_SYS_I2C_FSL=y
 CONFIG_SYS_FSL_I2C_OFFSET=0x118000
 CONFIG_SYS_FSL_HAS_I2C2_OFFSET=y