diff --git a/configs/boston32r6el_defconfig b/configs/boston32r6el_defconfig
index 154213e..9bd00d5 100644
--- a/configs/boston32r6el_defconfig
+++ b/configs/boston32r6el_defconfig
@@ -4,6 +4,7 @@
 CONFIG_SYS_MEMTEST_END=0x90000000
 CONFIG_ENV_SIZE=0x20000
 CONFIG_ENV_SECT_SIZE=0x20000
+CONFIG_SYS_MALLOC_LEN=0x40000
 CONFIG_DEFAULT_DEVICE_TREE="img,boston"
 CONFIG_TARGET_BOSTON=y
 CONFIG_SYS_LITTLE_ENDIAN=y