diff --git a/trytond/doc/ref/models.rst b/trytond/doc/ref/models.rst
index 3da1fe9ed7..19a9a6d527 100644
--- a/trytond/doc/ref/models.rst
+++ b/trytond/doc/ref/models.rst
@@ -414,7 +414,7 @@ Class methods:
 
    Delete records.
 
-.. classmethod:: ModelStorage.check_modification(mode, record[, values[, external]])
+.. classmethod:: ModelStorage.check_modification(mode, records[, values[, external]])
 
    Method called after ``records`` are created and before ``records`` are
    modified with ``values`` or deleted.