diff --git a/contrib/static/newboard.js b/contrib/static/newboard.js
index 99b1a2f..153dc1e 100644
--- a/contrib/static/newboard.js
+++ b/contrib/static/newboard.js
@@ -2,7 +2,7 @@ function createBoard() {
   var form = document.getElementById("postform");
   var e = document.getElementById("boardname");
   var board = e.value;
-  if ( ! board.startsWith("overchan.") ) {
+  if ( board.indexOf(".") == -1 ) {
     board = "overchan." + board;
   }
   form.action = form.action + board;