diff --git a/configs/uniphier_sld3_defconfig b/configs/uniphier_sld3_defconfig
index 598cde2106..4cbd01ceb6 100644
--- a/configs/uniphier_sld3_defconfig
+++ b/configs/uniphier_sld3_defconfig
@@ -1,5 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARCH_UNIPHIER=y
+CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_ARCH_UNIPHIER_SLD3=y
 CONFIG_MICRO_SUPPORT_CARD=y
 CONFIG_SYS_TEXT_BASE=0x84000000