diff --git a/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig b/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
index c278d5c9d0..6db58a0d5c 100644
--- a/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
+++ b/boards/nxp/fmuk66-v3/nuttx-config/socketcan/defconfig
@@ -138,7 +138,6 @@ CONFIG_NET_ICMP_SOCKET=y
 CONFIG_NET_TCP=y
 CONFIG_NET_TIMESTAMP=y
 CONFIG_NET_UDP=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