diff --git a/boards/sim/sim/sim/configs/citest/defconfig b/boards/sim/sim/sim/configs/citest/defconfig
index 89760a8f87..a45b23198b 100644
--- a/boards/sim/sim/sim/configs/citest/defconfig
+++ b/boards/sim/sim/sim/configs/citest/defconfig
@@ -87,6 +87,7 @@ CONFIG_LIBUV_THREADPOOL_SIZE=4
 CONFIG_LIBUV_THREAD_STACKSIZE=16384
 CONFIG_LIBUV_UTILS_STACKSIZE=65536
 CONFIG_LIBUV_UTILS_TEST=y
+CONFIG_LINE_MAX=200
 CONFIG_MM_IOB=y
 CONFIG_MQ_MAXMSGSIZE=128
 CONFIG_NET=y
@@ -99,6 +100,7 @@ CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_BUILTIN_APPS=y
 CONFIG_NSH_DISABLE_DATE=y
 CONFIG_NSH_DISABLE_TIMEDATECTL=y
+CONFIG_NSH_LINELEN=200
 CONFIG_NSH_MOTD=y
 CONFIG_NSH_MOTD_STRING="MOTD: username=admin password=Administrator"
 CONFIG_NSH_READLINE=y