diff --git a/configs/trats_defconfig b/configs/trats_defconfig
index 1889079..85a9d60 100644
--- a/configs/trats_defconfig
+++ b/configs/trats_defconfig
@@ -5,6 +5,7 @@
 CONFIG_ARCH_EXYNOS=y
 CONFIG_SYS_TEXT_BASE=0x63300000
 CONFIG_SYS_MALLOC_LEN=0x5001000
+CONFIG_SYS_MALLOC_F_LEN=0x400
 CONFIG_ARCH_EXYNOS4=y
 CONFIG_TARGET_TRATS=y
 CONFIG_ENV_SIZE=0x1000