diff --git a/configs/config-ccm-psk-tls1_2.h b/configs/config-ccm-psk-tls1_2.h
index 7a6e70d..3f9d9cd 100644
--- a/configs/config-ccm-psk-tls1_2.h
+++ b/configs/config-ccm-psk-tls1_2.h
@@ -8,59 +8,59 @@
  *
  * See README.txt for usage instructions.
  */
-#ifndef POLARSSL_CONFIG_H
-#define POLARSSL_CONFIG_H
+#ifndef MBEDTLS_CONFIG_H
+#define MBEDTLS_CONFIG_H
 
 /* System support */
-//#define POLARSSL_HAVE_IPV6 /* Optional */
-//#define POLARSSL_HAVE_TIME /* Optionally used in Hello messages */
-/* Other POLARSSL_HAVE_XXX flags irrelevant for this configuration */
+//#define MBEDTLS_HAVE_IPV6 /* Optional */
+//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
+/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
 
 /* mbed TLS feature support */
-#define POLARSSL_KEY_EXCHANGE_PSK_ENABLED
-#define POLARSSL_SSL_PROTO_TLS1_2
+#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
+#define MBEDTLS_SSL_PROTO_TLS1_2
 
 /* mbed TLS modules */
-#define POLARSSL_AES_C
-#define POLARSSL_CCM_C
-#define POLARSSL_CIPHER_C
-#define POLARSSL_CTR_DRBG_C
-#define POLARSSL_ENTROPY_C
-#define POLARSSL_MD_C
-#define POLARSSL_NET_C
-#define POLARSSL_SHA256_C
-#define POLARSSL_SSL_CLI_C
-#define POLARSSL_SSL_SRV_C
-#define POLARSSL_SSL_TLS_C
+#define MBEDTLS_AES_C
+#define MBEDTLS_CCM_C
+#define MBEDTLS_CIPHER_C
+#define MBEDTLS_CTR_DRBG_C
+#define MBEDTLS_ENTROPY_C
+#define MBEDTLS_MD_C
+#define MBEDTLS_NET_C
+#define MBEDTLS_SHA256_C
+#define MBEDTLS_SSL_CLI_C
+#define MBEDTLS_SSL_SRV_C
+#define MBEDTLS_SSL_TLS_C
 
 /* Save RAM at the expense of ROM */
-#define POLARSSL_AES_ROM_TABLES
+#define MBEDTLS_AES_ROM_TABLES
 
 /* Save some RAM by adjusting to your exact needs */
-#define POLARSSL_PSK_MAX_LEN    16 /* 128-bits keys are generally enough */
+#define MBEDTLS_PSK_MAX_LEN    16 /* 128-bits keys are generally enough */
 
 /*
  * You should adjust this to the exact number of sources you're using: default
  * is the "platform_entropy_poll" source, but you may want to add other ones
  * Minimum is 2 for the entropy test suite.
  */
-#define ENTROPY_MAX_SOURCES 2
+#define MBEDTLS_ENTROPY_MAX_SOURCES 2
 
 /*
  * Use only CCM_8 ciphersuites, and
  * save ROM and a few bytes of RAM by specifying our own ciphersuite list
  */
-#define SSL_CIPHERSUITES                        \
-        TLS_PSK_WITH_AES_256_CCM_8,             \
-        TLS_PSK_WITH_AES_128_CCM_8
+#define MBEDTLS_SSL_CIPHERSUITES                        \
+        MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8,             \
+        MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8
 
 /*
  * Save RAM at the expense of interoperability: do this only if you control
  * both ends of the connection!  (See comments in "mbedtls/ssl.h".)
  * The optimal size here depends on the typical size of records.
  */
-#define SSL_MAX_CONTENT_LEN             512
+#define MBEDTLS_SSL_MAX_CONTENT_LEN             512
 
 #include "check_config.h"
 
-#endif /* POLARSSL_CONFIG_H */
+#endif /* MBEDTLS_CONFIG_H */