diff --git a/content/flowcontrol/switch.go b/content/flowcontrol/switch.go
index 6837671..065db3d 100644
--- a/content/flowcontrol/switch.go
+++ b/content/flowcontrol/switch.go
@@ -17,6 +17,6 @@
 	default:
 		// freebsd, openbsd,
 		// plan9, windows...
-		fmt.Printf("%s.", os)
+		fmt.Printf("%s.\n", os)
 	}
 }