diff --git a/fs/perm.go b/fs/perm.go
index d16b3cd..9edc616 100644
--- a/fs/perm.go
+++ b/fs/perm.go
@@ -64,7 +64,7 @@ var Perms = map[string]Perm{
 		Files: map[string]os.FileMode{
 			"plan":        0666,
 			"ctl":         0666,
-			"prompt":      0466,
+			"prompt":      0666,
 			"fifo.in":     0222,
 			"fifo.out":    0444,
 			"chat":        0444,