diff --git a/meta-arm-bsp/conf/machine/musca-b1.conf b/meta-arm-bsp/conf/machine/musca-b1.conf
index 40964be1..50b2f05a 100644
--- a/meta-arm-bsp/conf/machine/musca-b1.conf
+++ b/meta-arm-bsp/conf/machine/musca-b1.conf
@@ -10,7 +10,7 @@ PREFERRED_VERSION_trusted-firmware-m = "1.0"
 require conf/machine/include/tune-cortexm33.inc
 
 # GLIBC will not work with Cortex-M.
-TCLIBC = "baremetal"
+TCLIBC = "newlib"
 
 # For runqemu
 require conf/machine/include/qemu.inc
diff --git a/meta-arm-bsp/conf/machine/musca-s1.conf b/meta-arm-bsp/conf/machine/musca-s1.conf
index d2e5ab7d..66e0a35c 100644
--- a/meta-arm-bsp/conf/machine/musca-s1.conf
+++ b/meta-arm-bsp/conf/machine/musca-s1.conf
@@ -10,4 +10,4 @@ PREFERRED_VERSION_trusted-firmware-m = "1.0"
 require conf/machine/include/tune-cortexm33.inc
 
 # GLIBC will not work with Cortex-M.
-TCLIBC = "baremetal"
+TCLIBC = "newlib"