diff --git a/src/@jitsi.pug b/src/@jitsi.pug
index 50c20a5..3eedc46 100644
--- a/src/@jitsi.pug
+++ b/src/@jitsi.pug
@@ -83,7 +83,7 @@ block content
       }
 
       joinname.addEventListener('input', v => {
-        const l = get_meeting_url(v.target.value)
+        const l = v.target.value ? get_meeting_url(v.target.value) : ""
         joinlink.textContent = l
         joinlink.href = l
       })