diff --git a/agents/issue_triage/marker.py b/agents/issue_triage/marker.py
index edeb07a..cadcab7 100644
--- a/agents/issue_triage/marker.py
+++ b/agents/issue_triage/marker.py
@@ -50,7 +50,7 @@ class TriageMarker:
 def find_prior_marker(issue: IssueContext) -> TriageMarker | None:
     logger.debug(json.dumps([c.model_dump() for c in issue.comments], indent=4))
     for c in reversed(issue.comments):
-        m = TriageMarker.parse(c['body'])
+        m = TriageMarker.parse(c.body)
         if m:
             return m