--- imap/tls.c.orig	Thu Jul 19 00:00:21 2007
+++ imap/tls.c	Thu Jul 19 00:00:28 2007
@@ -359,6 +359,8 @@ static int set_cert_stuff(SSL_CTX * ctx,
 			  const char *cert_file, const char *key_file)
 {
     if (cert_file != NULL) {
+/* Workaround for OpenSSL bug 1513 */
+	ERR_clear_error();
 	if (SSL_CTX_use_certificate_chain_file(ctx, cert_file) <= 0) {
 	    syslog(LOG_ERR, "unable to get certificate from '%s'", cert_file);
 	    return (0);