diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index cadb3cbd32..f3a60669b7 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -2373,6 +2373,9 @@ static const uint16_t ssl_preset_default_groups[] = {
 #if defined(PSA_WANT_ECC_SECP_R1_256)
     MBEDTLS_SSL_IANA_TLS_GROUP_SECP256R1,
 #endif
+#if defined(PSA_WANT_ECC_SECP_K1_256)
+    MBEDTLS_SSL_IANA_TLS_GROUP_SECP256K1,
+#endif
 #if defined(PSA_WANT_ECC_SECP_R1_384)
     MBEDTLS_SSL_IANA_TLS_GROUP_SECP384R1,
 #endif