diff --git a/libc/netbsd/net/getnameinfo.c b/libc/netbsd/net/getnameinfo.c
index eed23a7..8a1e95e 100644
--- a/libc/netbsd/net/getnameinfo.c
+++ b/libc/netbsd/net/getnameinfo.c
@@ -201,7 +201,7 @@
 	}
 
 	result = 0;
-	char msg_buf[5];
+	char msg_buf[4];
 	// read result code for gethostbyaddr
 	if (fread(msg_buf, 1, sizeof(msg_buf), proxy) != sizeof(msg_buf)) {
 		goto exit;