diff --git a/configs/poplar_defconfig b/configs/poplar_defconfig
index dfde654..62eaaee 100644
--- a/configs/poplar_defconfig
+++ b/configs/poplar_defconfig
@@ -1,6 +1,7 @@
 CONFIG_ARM=y
 CONFIG_TARGET_POPLAR=y
 CONFIG_SYS_TEXT_BASE=0x37000000
+CONFIG_SYS_MALLOC_F_LEN=0x4000
 CONFIG_NR_DRAM_BANKS=2
 CONFIG_IDENT_STRING="poplar"
 CONFIG_DISTRO_DEFAULTS=y