diff --git a/period.py b/period.py
index 6557c5a863..1961e54a3d 100644
--- a/period.py
+++ b/period.py
@@ -52,6 +52,10 @@ class Period(Workflow, ModelSQL, ModelView):
                     },
                 })
 
+    @staticmethod
+    def default_company():
+        return Transaction().context.get('company')
+
     @staticmethod
     def default_state():
         return 'draft'