diff --git a/lib/galaxy/model/__init__.py b/lib/galaxy/model/__init__.py
index 19668e985fd..6054b575575 100644
--- a/lib/galaxy/model/__init__.py
+++ b/lib/galaxy/model/__init__.py
@@ -7649,6 +7649,7 @@ class StoredWorkflow(Base, HasTags, Dictifiable, RepresentById):
 
     def invocation_counts(self) -> InvocationsStateCounts:
         sa_session = object_session(self)
+        assert sa_session
         stmt = (
             select(WorkflowInvocation.state, func.count(WorkflowInvocation.state))
             .select_from(StoredWorkflow)
@@ -7658,7 +7659,7 @@ class StoredWorkflow(Base, HasTags, Dictifiable, RepresentById):
             .where(StoredWorkflow.id == self.id)
         )
         rows = sa_session.execute(stmt).all()
-        rows_as_dict = dict(r for r in rows if r[0] is not None)
+        rows_as_dict = dict(r for r in rows if r[0] is not None)  # type:ignore[arg-type, var-annotated]
         return InvocationsStateCounts(rows_as_dict)
 
     def to_dict(self, view="collection", value_mapper=None):