diff --git a/ssl/statem/extensions_clnt.c b/ssl/statem/extensions_clnt.c
index 0ebaeead95..f0ae642fa0 100644
--- a/ssl/statem/extensions_clnt.c
+++ b/ssl/statem/extensions_clnt.c
@@ -1858,8 +1858,8 @@ int tls_parse_stoc_key_share(SSL *s, PACKET *pkt, unsigned int context, X509 *x,
         return 0;
     }
 
-    skey = ssl_generate_pkey(ckey);
-    if (skey == NULL) {
+    skey = EVP_PKEY_new();
+    if (skey == NULL || EVP_PKEY_copy_parameters(skey, ckey) <= 0) {
         SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_TLS_PARSE_STOC_KEY_SHARE,
                  ERR_R_MALLOC_FAILURE);
         return 0;