Index: deps/neverbleed/neverbleed.h
--- deps/neverbleed/neverbleed.h.orig
+++ deps/neverbleed/neverbleed.h
@@ -34,7 +34,12 @@ extern "C" {
 #define NEVERBLEED_AUTH_TOKEN_SIZE 32
 
 typedef struct st_neverbleed_t {
+#ifdef OPENSSL_NO_ENGINE
+    RSA_METHOD *rsa_method;
+    void *ecdsa_method;
+#else
     ENGINE *engine;
+#endif
     pid_t daemon_pid;
     struct sockaddr_un sun_;
     pthread_key_t thread_key;