diff --git a/library/ssl_misc.h b/library/ssl_misc.h
index e274d5b..df4835b 100644
--- a/library/ssl_misc.h
+++ b/library/ssl_misc.h
@@ -2085,7 +2085,7 @@
 #define MBEDTLS_SSL_SIG_ALG( hash )
 #endif /* MBEDTLS_ECDSA_C && MBEDTLS_RSA_C */
 #endif /* MBEDTLS_SSL_PROTO_TLS1_2 && MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
-#if defined(MBEDTLS_PSA_CRYPTO_C)
+#if defined(MBEDTLS_USE_PSA_CRYPTO)
 /* Corresponding PSA algorithm for MBEDTLS_CIPHER_NULL.
  * Same value is used fo PSA_ALG_CATEGORY_CIPHER, hence it is
  * guaranteed to not be a valid PSA algorithm identifier.
@@ -2115,7 +2115,9 @@
                                     psa_algorithm_t *alg,
                                     psa_key_type_t *key_type,
                                     size_t *key_size );
+#endif /* MBEDTLS_USE_PSA_CRYPTO */
 
+#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
 /**
  * \brief       Convert given PSA status to mbedtls error code.
  *
@@ -2143,6 +2145,6 @@
             return( MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED );
     }
 }
-#endif /* MBEDTLS_PSA_CRYPTO_C */
+#endif /* MBEDTLS_USE_PSA_CRYPTO || MBEDTLS_SSL_PROTO_TLS1_3 */
 
 #endif /* ssl_misc.h */