diff --git a/ssl/ssl.h b/ssl/ssl.h
index 9791abc45..235c7b20a 100644
--- a/ssl/ssl.h
+++ b/ssl/ssl.h
@@ -825,7 +825,7 @@ struct ssl_ctx_st
 	 */
 	unsigned int max_send_fragment;
 
-#ifndef OPENSSL_ENGINE
+#ifndef OPENSSL_NO_ENGINE
 	/* Engine to pass requests for client certs to
 	 */
 	ENGINE *client_cert_engine;