diff --git a/configs/nsim_hs38_defconfig b/configs/nsim_hs38_defconfig
index eea3702..51ce560 100644
--- a/configs/nsim_hs38_defconfig
+++ b/configs/nsim_hs38_defconfig
@@ -3,6 +3,7 @@
 CONFIG_TARGET_NSIM=y
 CONFIG_NSIM_BOARD_CPPFLAGS="-mcpu=archs"
 CONFIG_SYS_TEXT_BASE=0x81000000
+CONFIG_SYS_MALLOC_LEN=0x0200000
 CONFIG_DEFAULT_DEVICE_TREE="nsim"
 CONFIG_DEBUG_UART_BASE=0xf0000000
 CONFIG_DEBUG_UART_CLOCK=70000000