diff --git a/sys/src/cmd/hjfs/main.c b/sys/src/cmd/hjfs/main.c
index 1bb595526..abf37c112 100644
--- a/sys/src/cmd/hjfs/main.c
+++ b/sys/src/cmd/hjfs/main.c
@@ -104,7 +104,7 @@ threadmain(int argc, char **argv)
 	flags = FSNOAUTH;
 	service = "hjfs";
 	file = nil;
-	nbuf = 10;
+	nbuf = 1000;
 	ARGBEGIN {
 	case 'A': flags &= ~FSNOAUTH; break;
 	case 'r': doream++; break;