diff --git a/boards/arm/tlsr82/tlsr8278adk80d/configs/nsh/defconfig b/boards/arm/tlsr82/tlsr8278adk80d/configs/nsh/defconfig
index a88d6c5db2b..dc655f87939 100644
--- a/boards/arm/tlsr82/tlsr8278adk80d/configs/nsh/defconfig
+++ b/boards/arm/tlsr82/tlsr8278adk80d/configs/nsh/defconfig
@@ -55,6 +55,7 @@ CONFIG_DRVR_MKRD=y
 CONFIG_FS_PROCFS=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_LIBC_LONG_LONG=y
+CONFIG_LIBM=y
 CONFIG_MTD=y
 CONFIG_MTD_PARTITION=y
 CONFIG_NSH_ARGCAT=y