diff --git a/SymCryptProvider/inc/scossl_provider.h b/SymCryptProvider/inc/scossl_provider.h
index 594f786..79ec559 100644
--- a/SymCryptProvider/inc/scossl_provider.h
+++ b/SymCryptProvider/inc/scossl_provider.h
@@ -43,7 +43,7 @@ extern "C" {
 #define SCOSSL_SN_MLKEM1024     "mlkem1024"
 #define SCOSSL_OID_MLKEM1024    "2.16.840.1.101.3.4.4.3"
 
-#define SCOSSL_SN_P256_MLKEM768     SN_X9_62_prime256v1 SCOSSL_SN_MLKEM768
+#define SCOSSL_SN_P256_MLKEM768     "secp256r1"SCOSSL_SN_MLKEM768
 #define SCOSSL_OID_P256_MLKEM768    "2.16.840.1.101.3.4.4.4"
 
 #define SCOSSL_SN_X25519_MLKEM768    SN_X25519 SCOSSL_SN_MLKEM768
diff --git a/SymCryptProvider/src/p_scossl_base.c b/SymCryptProvider/src/p_scossl_base.c
index 91e7ebe..c5bb7ed 100644
--- a/SymCryptProvider/src/p_scossl_base.c
+++ b/SymCryptProvider/src/p_scossl_base.c
@@ -198,7 +198,7 @@ static const OSSL_PARAM p_scossl_supported_group_list[][11] = {
     TLS_GROUP_ENTRY("mlkem1024", SCOSSL_SN_MLKEM1024, "MLKEM", scossl_tls_group_info_mlkem1024),
     TLS_GROUP_ENTRY("secp256r1mlkem768", SCOSSL_SN_P256_MLKEM768, "MLKEM", scossl_tls_group_info_secp256r1mlkem768),
     TLS_GROUP_ENTRY("P256mlkem768", SCOSSL_SN_P256_MLKEM768, "MLKEM", scossl_tls_group_info_secp256r1mlkem768),
-    TLS_GROUP_ENTRY("x25519mlkem768", SCOSSL_SN_X25519_MLKEM768, "MLKEM", scossl_tls_group_info_x25519mlkem768),
+    TLS_GROUP_ENTRY("X25519mlkem768", SCOSSL_SN_X25519_MLKEM768, "MLKEM", scossl_tls_group_info_x25519mlkem768),
     TLS_GROUP_ENTRY("secp384r1mlkem1024", SCOSSL_SN_P384_MLKEM1024, "MLKEM", scossl_tls_group_info_secp384r1mlkem1024),
     TLS_GROUP_ENTRY("P384mlkem1024", SCOSSL_SN_P384_MLKEM1024, "MLKEM", scossl_tls_group_info_secp384r1mlkem1024)};