diff --git a/targets/TARGET_NUVOTON/TARGET_M480/crypto/crypto-misc.cpp b/targets/TARGET_NUVOTON/TARGET_M480/crypto/crypto-misc.cpp
index 811715119a..13000985af 100644
--- a/targets/TARGET_NUVOTON/TARGET_M480/crypto/crypto-misc.cpp
+++ b/targets/TARGET_NUVOTON/TARGET_M480/crypto/crypto-misc.cpp
@@ -19,7 +19,7 @@
 #include "mbed_assert.h"
 #include "mbed_critical.h"
 #include "mbed_error.h"
-#if defined(MBED_CONF_RTOS_PRESENT) && MBED_CONF_RTOS_PRESENT
+#if MBED_CONF_RTOS_PRESENT
 #include "cmsis_os2.h"
 #endif
 #include <string.h>
diff --git a/targets/TARGET_NUVOTON/TARGET_NUC472/crypto/crypto-misc.cpp b/targets/TARGET_NUVOTON/TARGET_NUC472/crypto/crypto-misc.cpp
index 7f5b77cd9e..f771a3e510 100644
--- a/targets/TARGET_NUVOTON/TARGET_NUC472/crypto/crypto-misc.cpp
+++ b/targets/TARGET_NUVOTON/TARGET_NUC472/crypto/crypto-misc.cpp
@@ -19,7 +19,7 @@
 #include "mbed_assert.h"
 #include "mbed_critical.h"
 #include "mbed_error.h"
-#if defined(MBED_CONF_RTOS_PRESENT) && MBED_CONF_RTOS_PRESENT
+#if MBED_CONF_RTOS_PRESENT
 #include "cmsis_os2.h"
 #endif
 #include <string.h>