diff --git a/content/content.js b/content/content.js
index 395cfa1..b6f9629 100644
--- a/content/content.js
+++ b/content/content.js
@@ -179,7 +179,7 @@
  processed.add(m);
  continue;
  }
- if (UI && UI.setDot) UI.setDot('busy'); var parsed = extractCalls(text, 3);
+ var hasMarker = text.indexOf(String.fromCharCode(10214)) !== -1 || text.indexOf('[DSH') !== -1; if (hasMarker && UI && UI.setDot) UI.setDot('busy'); var parsed = extractCalls(text, 3);
  if (!parsed) continue;
  if (!parsed.calls) continue;
  if (parsed.calls.length === 0) continue;