diff --git a/src/microhttpd/daemon.c b/src/microhttpd/daemon.c
index 6a92e733..3d96150d 100644
--- a/src/microhttpd/daemon.c
+++ b/src/microhttpd/daemon.c
@@ -3684,7 +3684,7 @@ MHD_accept_connection (struct MHD_Daemon *daemon)
 
 #ifdef USE_ACCEPT4
   s = accept4 (fd,
-               &addrstorage,
+               (struct sockaddr *) &addrstorage,
                &addrlen,
                SOCK_CLOEXEC_OR_ZERO | SOCK_NONBLOCK_OR_ZERO
                | SOCK_NOSIGPIPE_OR_ZERO);