diff --git a/watcher.js b/watcher.js
index e414eb5..658393f 100644
--- a/watcher.js
+++ b/watcher.js
@@ -14,7 +14,7 @@ const statusFile = './static/status.json';
 
 const delay  = async t=>new Promise(r=>setTimeout(r, t));
 const handlize = s=>s.toLowerCase().replace(/[^a-z0-9]/g, ' ').trim().replace(/\s+/g, '-');
-const checkContent = async (content, criterion, negate) => {
+const checkContent = async (content, criterion, negate=false) => {
 	if(typeof criterion=='string') {
 		return content.includes(criterion)!=negate;
 	} else if(Array.isArray(criterion)) {