diff --git a/tool/generate.go b/tool/generate.go
index b06adf4..98e8d84 100644
--- a/tool/generate.go
+++ b/tool/generate.go
@@ -154,4 +154,5 @@ func main() {
     }
 
     fmt.Print(`</tbody></table></div></body></html>`)
+    fmt.Fprint(os.Stderr, "\n")
 }