diff --git a/buildman/jobutil/workererror.py b/buildman/jobutil/workererror.py
index 2a736924f..688460bb8 100644
--- a/buildman/jobutil/workererror.py
+++ b/buildman/jobutil/workererror.py
@@ -94,7 +94,10 @@ class WorkerError(object):
   def extra_data(self):
     if self._base_message:
       return {
-          'base_error': self._base_message
+          'base_error': self._base_message,
+          'error_code': self._error_code
       }
 
-    return {}
+    return {
+        'error_code': self._error_code
+    }