diff --git a/.gitignore b/.hgignore
similarity index 87%
rename from .gitignore
rename to .hgignore
index 1126263..fe73df3 100644
--- a/.gitignore
+++ b/.hgignore
@@ -1,4 +1,4 @@
-*.pyc
+syntax: glob
 .env
 build/*
 dist/*
diff --git a/ir.py b/ir.py
index 018dd8e..d3ec250 100644
--- a/ir.py
+++ b/ir.py
@@ -14,9 +14,9 @@ class Rule(metaclass=PoolMeta):
         """ list of models to add 'user_id' to context
         """
         result = super(Rule, cls)._context_modelnames()
-        return result | {
+        result.extend([
             'cashbook.planner',
-            'cashbook.planner.nextrun',
-        }
+            'cashbook.planner.nextrun'])
+        return result
 
 # end Rule