diff --git a/modules/ssl/ssl_engine_init.c b/modules/ssl/ssl_engine_init.c
index 1b9cee4004..7423b06cfe 100644
--- a/modules/ssl/ssl_engine_init.c
+++ b/modules/ssl/ssl_engine_init.c
@@ -231,9 +231,11 @@ apr_status_t ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,
 #endif
     }
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 #if APR_HAS_THREADS
     ssl_util_thread_setup(p);
 #endif
+#endif /* #if OPENSSL_VERSION_NUMBER < 0x10100000L */
 
     /*
      * SSL external crypto device ("engine") support
diff --git a/modules/ssl/ssl_private.h b/modules/ssl/ssl_private.h
index 7b4c117c1f..958a713948 100644
--- a/modules/ssl/ssl_private.h
+++ b/modules/ssl/ssl_private.h
@@ -878,7 +878,9 @@ void         ssl_util_ppclose(server_rec *, apr_pool_t *, apr_file_t *);
 char        *ssl_util_readfilter(server_rec *, apr_pool_t *, const char *,
                                  const char * const *);
 BOOL         ssl_util_path_check(ssl_pathcheck_t, const char *, apr_pool_t *);
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 void         ssl_util_thread_setup(apr_pool_t *);
+#endif
 int          ssl_init_ssl_connection(conn_rec *c, request_rec *r);
 
 BOOL         ssl_util_vhost_matches(const char *servername, server_rec *s);