diff --git a/lib/net_mosq.c b/lib/net_mosq.c
index d593c7b27..5494abaea 100644
--- a/lib/net_mosq.c
+++ b/lib/net_mosq.c
@@ -103,7 +103,9 @@ void net__cleanup(void)
 	#if OPENSSL_VERSION_NUMBER < 0x10100000L
 		ERR_remove_state(0);
 	#endif
-	ENGINE_cleanup();
+	#ifndef OPENSSL_NO_ENGINE
+		ENGINE_cleanup();
+	#endif
 	CONF_modules_unload(1);
 	ERR_free_strings();
 	EVP_cleanup();