diff --git a/pagure/lib/model.py b/pagure/lib/model.py
index dd58bef..8c2a139 100644
--- a/pagure/lib/model.py
+++ b/pagure/lib/model.py
@@ -786,6 +786,8 @@ class PullRequest(BASE):
             'status': self.status,
             'commit_start': self.commit_start,
             'commit_stop': self.commit_stop,
+            'closed_by': self.closed_by.to_json(public=public)
+            if self.closed_by else None,
         }
 
         comments = []