diff --git a/can/input.go b/can/input.go
index 6ddca57..457b4a3 100644
--- a/can/input.go
+++ b/can/input.go
@@ -58,6 +58,7 @@ func ReadStdin() <-chan *CanFrame {
 	go func() {
 		scanner := bufio.NewScanner(os.Stdin)
 		process(scanner, c)
+		close(c)
 	}()
 	return c
 }