diff --git a/lib/galaxy/jobs/__init__.py b/lib/galaxy/jobs/__init__.py
index 570d1d72b99b..f15afe2b58e6 100644
--- a/lib/galaxy/jobs/__init__.py
+++ b/lib/galaxy/jobs/__init__.py
@@ -1181,7 +1181,9 @@ def galaxy_url(self):
         return self.get_destination_configuration("galaxy_infrastructure_url")
 
     def get_job(self) -> model.Job:
-        return self.sa_session.get(Job, self.job_id)  # type:ignore[return-value]
+        job = self.sa_session.get(Job, self.job_id)
+        assert job
+        return job
 
     def get_id_tag(self):
         # For compatibility with drmaa, which uses job_id right now, and TaskWrapper