diff --git a/tools/tty/tty.go b/tools/tty/tty.go
index 16d0c3271..3c691a468 100644
--- a/tools/tty/tty.go
+++ b/tools/tty/tty.go
@@ -345,6 +345,7 @@ func DebugPrintln(a ...any) {
 		if fd, err := strconv.Atoi(fds); err == nil && fd > -1 {
 			if f := os.NewFile(uintptr(fd), "<kitty_stdout>"); f != nil {
 				fmt.Fprintln(f, a...)
+				f.Close()
 				return
 			}
 		}