diff --git a/boards/x86_64/intel64/qemu-intel64/configs/nsh/defconfig b/boards/x86_64/intel64/qemu-intel64/configs/nsh/defconfig
index 732bb5aea1..b6e9564f50 100644
--- a/boards/x86_64/intel64/qemu-intel64/configs/nsh/defconfig
+++ b/boards/x86_64/intel64/qemu-intel64/configs/nsh/defconfig
@@ -30,6 +30,7 @@ CONFIG_EXAMPLES_HELLO=y
 CONFIG_EXAMPLES_HELLO_STACKSIZE=4194304
 CONFIG_FS_PROCFS=y
 CONFIG_IDLETHREAD_STACKSIZE=4194304
+CONFIG_LIBM=y
 CONFIG_MAX_TASKS=64
 CONFIG_NFILE_DESCRIPTORS=32
 CONFIG_NSH_ARCHINIT=y
diff --git a/boards/x86_64/intel64/qemu-intel64/configs/ostest/defconfig b/boards/x86_64/intel64/qemu-intel64/configs/ostest/defconfig
index 3ac22f39f7..2c11994b9c 100644
--- a/boards/x86_64/intel64/qemu-intel64/configs/ostest/defconfig
+++ b/boards/x86_64/intel64/qemu-intel64/configs/ostest/defconfig
@@ -26,6 +26,7 @@ CONFIG_BOOT_RUNFROMEXTSRAM=y
 CONFIG_CLOCK_MONOTONIC=y
 CONFIG_CONSOLE_SYSLOG=y
 CONFIG_IDLETHREAD_STACKSIZE=4194304
+CONFIG_LIBM=y
 CONFIG_MAX_TASKS=64
 CONFIG_NFILE_DESCRIPTORS=32
 CONFIG_PREALLOC_CHILDSTATUS=16