diff --git a/configs/imx8mn_bsh_smm_s2_defconfig b/configs/imx8mn_bsh_smm_s2_defconfig
index 1c11d4705419..206d216394db 100644
--- a/configs/imx8mn_bsh_smm_s2_defconfig
+++ b/configs/imx8mn_bsh_smm_s2_defconfig
@@ -15,7 +15,6 @@ CONFIG_SYS_MONITOR_LEN=524288
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL_STACK=0x980000
-CONFIG_SPL_SYS_MALLOC_F_LEN=0x2000
 CONFIG_SPL_TEXT_BASE=0x912000
 CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x950000
diff --git a/configs/imx8mn_bsh_smm_s2pro_defconfig b/configs/imx8mn_bsh_smm_s2pro_defconfig
index d2010d13b8cb..ef486f51eeeb 100644
--- a/configs/imx8mn_bsh_smm_s2pro_defconfig
+++ b/configs/imx8mn_bsh_smm_s2pro_defconfig
@@ -16,7 +16,6 @@ CONFIG_SPL_MMC=y
 CONFIG_SPL_SERIAL=y
 CONFIG_SPL_DRIVERS_MISC=y
 CONFIG_SPL_STACK=0x980000
-CONFIG_SPL_SYS_MALLOC_F_LEN=0x2000
 CONFIG_SPL_TEXT_BASE=0x912000
 CONFIG_SPL_HAS_BSS_LINKER_SECTION=y
 CONFIG_SPL_BSS_START_ADDR=0x950000