diff --git a/boards/risc-v/mpfs/icicle/configs/knsh/defconfig b/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
index 0e83cbc042..c50bee97af 100644
--- a/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
+++ b/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
@@ -54,11 +54,14 @@ CONFIG_HAVE_CXX=y
 CONFIG_IDLETHREAD_STACKSIZE=2048
 CONFIG_INIT_STACKSIZE=3072
 CONFIG_INTELHEX_BINARY=y
+CONFIG_LIBCXX=y
+CONFIG_LIBCXXABI=y
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBC_HOSTNAME="icicle"
 CONFIG_LIBC_MAX_EXITFUNS=2
 CONFIG_LIBC_PERROR_STDOUT=y
 CONFIG_LIBC_STRERROR=y
+CONFIG_LIBM=y
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MM_PGALLOC=y