diff --git a/modules/boursorama/pages.py b/modules/boursorama/pages.py
index f491c3a8e4a4cb00f231018d17edca2c8b7ec5a0..11e1cbb744ec134860048b0ffe82fbf0b2575705 100644
--- a/modules/boursorama/pages.py
+++ b/modules/boursorama/pages.py
@@ -597,6 +597,12 @@ def inner(page, *args, **kwargs):
 
 
 class HistoryPage(LoggedPage, HTMLPage):
+    """
+    be carefull : `transaction_klass` is used in another page
+    of an another module which is an abstract of this page
+    """
+    transaction_klass = Transaction
+
     @otp_pagination
     @method
     class iter_history(ListElement):
diff --git a/modules/societegenerale/pages/accounts_list.py b/modules/societegenerale/pages/accounts_list.py
index 37caaa4f192ba73a1eecfadb138a2af6330332ee..90cd50e628da85bfd5d3d5623a346261a0bc4610 100644
--- a/modules/societegenerale/pages/accounts_list.py
+++ b/modules/societegenerale/pages/accounts_list.py
@@ -473,6 +473,12 @@ def obj_vdate(self):
 
 
 class HistoryPage(JsonBasePage):
+    """
+    be carefull : `transaction_klass` is used in another page
+    of an another module which is an abstract of this page
+    """
+    transaction_klass = Transaction
+
     def hist_pagination(self, condition):
         all_conditions = {
             'history': (