diff --git a/src/network_writev.c b/src/network_writev.c
index d628f751..55336f04 100644
--- a/src/network_writev.c
+++ b/src/network_writev.c
@@ -55,7 +55,7 @@ int network_write_chunkqueue_writev(server *srv, connection *con, int fd, chunkq
 			const size_t max_chunks = MAX_IOVEC;
 #elif defined(UIO_MAXIOV) /* Linux x86 (glibc-2.2.5-233) */
 			const size_t max_chunks = UIO_MAXIOV;
-#elif (defined(__FreeBSD__) && __FreeBSD_version < 500000) /* FreeBSD 4.x */
+#elif (defined(__FreeBSD__) && __FreeBSD_version < 500000) || defined(__DragonFly__) /* FreeBSD 4.x */
 			const size_t max_chunks = 1024; /* UIO_MAXIOV value from sys/uio.h */
 #else
 #error "sysconf() doesnt return _SC_IOV_MAX ..., check the output of 'man writev' for the EINVAL error and send the output to jan@kneschke.de"