diff --git a/purchase.py b/purchase.py
index 3fa5825d94..f3b103a8ee 100644
--- a/purchase.py
+++ b/purchase.py
@@ -56,8 +56,7 @@ class PurchaseConfigPurchaseDropLocation(ModelSQL, ValueMixin):
 
     @classmethod
     def __register__(cls, module_name):
-        TableHandler = backend.get('TableHandler')
-        exist = TableHandler.table_exist(cls._table)
+        exist = backend.TableHandler.table_exist(cls._table)
 
         super(PurchaseConfigPurchaseDropLocation, cls).__register__(
             module_name)
diff --git a/sale.py b/sale.py
index d211f0fca9..22ca3b6096 100644
--- a/sale.py
+++ b/sale.py
@@ -33,8 +33,7 @@ class SaleConfigSaleDropLocation(ModelSQL, ValueMixin):
 
     @classmethod
     def __register__(cls, module_name):
-        TableHandler = backend.get('TableHandler')
-        exist = TableHandler.table_exist(cls._table)
+        exist = backend.TableHandler.table_exist(cls._table)
 
         super(SaleConfigSaleDropLocation, cls).__register__(
             module_name)
diff --git a/stock.py b/stock.py
index 93362bed8b..0a4b2c6c48 100644
--- a/stock.py
+++ b/stock.py
@@ -59,8 +59,7 @@ class ConfigurationSequence(metaclass=PoolMeta):
 
     @classmethod
     def __register__(cls, module_name):
-        TableHandler = backend.get('TableHandler')
-        exist = TableHandler.table_exist(cls._table)
+        exist = backend.TableHandler.table_exist(cls._table)
         if exist:
             table = cls.__table_handler__(module_name)
             exist &= table.column_exist('shipment_drop_sequence')