diff --git a/contract/models/__init__.py b/contract/models/__init__.py
index 94c4df5c..406cc389 100644
--- a/contract/models/__init__.py
+++ b/contract/models/__init__.py
@@ -2,7 +2,7 @@
 
 from . import account_analytic_contract
 from . import account_analytic_account
-from . import account_analytic_invoice_line_bis
-from . import account_analytic_contract_line_bis
+from . import account_analytic_contract_line
+from . import account_analytic_invoice_line
 from . import account_invoice
 from . import res_partner
diff --git a/contract/models/account_analytic_invoice_line_bis.py b/contract/models/account_analytic_contract_line.py
similarity index 100%
rename from contract/models/account_analytic_invoice_line_bis.py
rename to contract/models/account_analytic_contract_line.py
diff --git a/contract/models/account_analytic_contract_line_bis.py b/contract/models/account_analytic_invoice_line.py
similarity index 100%
rename from contract/models/account_analytic_contract_line_bis.py
rename to contract/models/account_analytic_invoice_line.py