diff --git a/crypto/x509/x509_req.c b/crypto/x509/x509_req.c
index daaedb69..2732d6e7 100644
--- a/crypto/x509/x509_req.c
+++ b/crypto/x509/x509_req.c
@@ -92,6 +92,8 @@ X509_REQ *X509_to_X509_REQ(X509 *x, EVP_PKEY *pkey, const EVP_MD *md)
 		goto err;
 
 	pktmp = X509_get_pubkey(x);
+	if (pktmp == NULL)
+		goto err;
 	i=X509_REQ_set_pubkey(ret,pktmp);
 	EVP_PKEY_free(pktmp);
 	if (!i) goto err;