diff --git a/trytond/backend/postgresql/table.py b/trytond/backend/postgresql/table.py
index 06f4753ec1..c10c5fa16f 100644
--- a/trytond/backend/postgresql/table.py
+++ b/trytond/backend/postgresql/table.py
@@ -286,7 +286,8 @@ class TableHandler(TableHandlerInterface):
             self._update_definitions()
         elif action == 'remove':
             if len(column_name) == 1:
-                if self._field2module.get(column_name[0]) != self.module_name:
+                if self._field2module.get(column_name[0], self.module_name) \
+                        != self.module_name:
                     return
 
             if index_name in self._indexes:
@@ -322,7 +323,8 @@ class TableHandler(TableHandlerInterface):
         elif action == 'remove':
             if not self._columns[column_name]['notnull']:
                 return
-            if self._field2module.get(column_name) != self.module_name:
+            if self._field2module.get(column_name, self.module_name) \
+                    != self.module_name:
                 return
             self.cursor.execute('ALTER TABLE "%s" ' \
                                'ALTER COLUMN "%s" DROP NOT NULL' %
diff --git a/trytond/backend/sqlite/table.py b/trytond/backend/sqlite/table.py
index e1cca47846..089ad1de37 100644
--- a/trytond/backend/sqlite/table.py
+++ b/trytond/backend/sqlite/table.py
@@ -199,7 +199,8 @@ class TableHandler(TableHandlerInterface):
             self._update_definitions()
         elif action == 'remove':
             if len(column_name) == 1:
-                if self._field2module.get(column_name[0]) != self.module_name:
+                if self._field2module.get(column_name[0], self.module_name) \
+                        != self.module_name:
                     return
 
             if index_name in self._indexes: