diff --git a/library/ssl_tls13_server.c b/library/ssl_tls13_server.c
index 2ca42f2..8b60a7b 100644
--- a/library/ssl_tls13_server.c
+++ b/library/ssl_tls13_server.c
@@ -1076,11 +1076,11 @@
 {
     switch (sig_alg) {
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP256R1_SHA256:
-            return PSA_ALG_ECDSA(PSA_ALG_SHA_256);
+            return MBEDTLS_PK_ALG_ECDSA(PSA_ALG_SHA_256);
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP384R1_SHA384:
-            return PSA_ALG_ECDSA(PSA_ALG_SHA_384);
+            return MBEDTLS_PK_ALG_ECDSA(PSA_ALG_SHA_384);
         case MBEDTLS_TLS1_3_SIG_ECDSA_SECP521R1_SHA512:
-            return PSA_ALG_ECDSA(PSA_ALG_SHA_512);
+            return MBEDTLS_PK_ALG_ECDSA(PSA_ALG_SHA_512);
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA256:
             return PSA_ALG_RSA_PSS(PSA_ALG_SHA_256);
         case MBEDTLS_TLS1_3_SIG_RSA_PSS_RSAE_SHA384: