diff --git a/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig b/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
index 86255f3b75..5e65e9c637 100644
--- a/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
+++ b/boards/nxp/fmuk66-v3/nuttx-config/nsh/defconfig
@@ -139,7 +139,6 @@ CONFIG_NET_TCPBACKLOG=y
 CONFIG_NET_TCP_WRITE_BUFFERS=y
 CONFIG_NET_UDP=y
 CONFIG_NET_UDP_CHECKSUMS=y
-CONFIG_NFILE_DESCRIPTORS=12
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_ARCHROMFS=y
 CONFIG_NSH_BUILTIN_APPS=y
@@ -149,11 +148,8 @@ CONFIG_NSH_DISABLE_DIRNAME=y
 CONFIG_NSH_DISABLE_EXPORT=y
 CONFIG_NSH_DISABLE_HEXDUMP=y
 CONFIG_NSH_DISABLE_LOSETUP=y
-CONFIG_NSH_DISABLE_MB=y
-CONFIG_NSH_DISABLE_MH=y
 CONFIG_NSH_DISABLE_MKFIFO=y
 CONFIG_NSH_DISABLE_MKRD=y
-CONFIG_NSH_DISABLE_MW=y
 CONFIG_NSH_DISABLE_PUT=y
 CONFIG_NSH_DISABLE_REBOOT=y
 CONFIG_NSH_DISABLE_TELNETD=y