diff --git a/boards/atl/mantis-edu/nuttx-config/nsh/defconfig b/boards/atl/mantis-edu/nuttx-config/nsh/defconfig
index 64a5da2acd9..d6425af8063 100644
--- a/boards/atl/mantis-edu/nuttx-config/nsh/defconfig
+++ b/boards/atl/mantis-edu/nuttx-config/nsh/defconfig
@@ -71,6 +71,7 @@ CONFIG_FS_FAT=y
 CONFIG_FS_FATTIME=y
 CONFIG_FS_PROCFS=y
 CONFIG_FS_PROCFS_INCLUDE_PROGMEM=y
+CONFIG_FS_PROCFS_MAX_TASKS=64
 CONFIG_FS_PROCFS_REGISTER=y
 CONFIG_FS_ROMFS=y
 CONFIG_GRAN=y
@@ -83,7 +84,6 @@ CONFIG_IDLETHREAD_STACKSIZE=750
 CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
-CONFIG_MAX_TASKS=64
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MMCSD=y
@@ -95,7 +95,6 @@ CONFIG_MTD_BYTE_WRITE=y
 CONFIG_MTD_PARTITION=y
 CONFIG_MTD_RAMTRON=y
 CONFIG_NAME_MAX=40
-CONFIG_NFILE_DESCRIPTORS=12
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_ARCHROMFS=y
 CONFIG_NSH_ARGCAT=y
@@ -104,9 +103,6 @@ CONFIG_NSH_CMDPARMS=y
 CONFIG_NSH_CROMFSETC=y
 CONFIG_NSH_DISABLE_IFCONFIG=y
 CONFIG_NSH_DISABLE_IFUPDOWN=y
-CONFIG_NSH_DISABLE_MB=y
-CONFIG_NSH_DISABLE_MH=y
-CONFIG_NSH_DISABLE_MW=y
 CONFIG_NSH_DISABLE_TELNETD=y
 CONFIG_NSH_LINELEN=128
 CONFIG_NSH_MAXARGUMENTS=15