diff --git a/features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/mbedtls_device.h b/features/mbedtls/targets/TARGET_STM/TARGET_STM32F437xG/mbedtls_device.h
similarity index 86%
rename from features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/mbedtls_device.h
rename to features/mbedtls/targets/TARGET_STM/TARGET_STM32F437xG/mbedtls_device.h
index 4fafb6f580..b32ca58ea8 100644
--- a/features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F437xG/mbedtls_device.h
+++ b/features/mbedtls/targets/TARGET_STM/TARGET_STM32F437xG/mbedtls_device.h
@@ -21,9 +21,11 @@
 #define MBEDTLS_DEVICE_H
 
 #define MBEDTLS_AES_ALT
-
-#define MBEDTLS_SHA1_ALT
-
 #define MBEDTLS_MD5_ALT
+#define MBEDTLS_SHA1_ALT
+#define MBEDTLS_SHA256_ALT
+// #define MBEDTLS_CCM_ALT  // not fully supported yet
+// #define MBEDTLS_GCM_ALT  // not fully supported yet
+
 
 #endif /* MBEDTLS_DEVICE_H */
diff --git a/features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/mbedtls_device.h b/features/mbedtls/targets/TARGET_STM/TARGET_STM32F439xI/mbedtls_device.h
similarity index 79%
rename from features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/mbedtls_device.h
rename to features/mbedtls/targets/TARGET_STM/TARGET_STM32F439xI/mbedtls_device.h
index f38740cb8f..66a005e46d 100644
--- a/features/mbedtls/targets/TARGET_STM/TARGET_STM32F4/TARGET_STM32F439xI/mbedtls_device.h
+++ b/features/mbedtls/targets/TARGET_STM/TARGET_STM32F439xI/mbedtls_device.h
@@ -20,4 +20,11 @@
 #ifndef MBEDTLS_DEVICE_H
 #define MBEDTLS_DEVICE_H
 
+#define MBEDTLS_AES_ALT
+#define MBEDTLS_MD5_ALT
+#define MBEDTLS_SHA1_ALT
+#define MBEDTLS_SHA256_ALT
+// #define MBEDTLS_CCM_ALT  // not fully supported yet
+// #define MBEDTLS_GCM_ALT  // not fully supported yet
+
 #endif /* MBEDTLS_DEVICE_H */