diff --git a/beancount_cde_importer/__init__.py b/beancount_cde_importer/__init__.py
index 59042f3..260f8ef 100644
--- a/beancount_cde_importer/__init__.py
+++ b/beancount_cde_importer/__init__.py
@@ -16,6 +16,7 @@ COL_LABEL = "Libelle simplifie"
 COL_DEBIT = "Debit"
 COL_CREDIT = "Credit"
 COL_DETAIL = "Informations complementaires"
+COL_DATE_OP = "Date operation"
 
 END_DATE_REGEX = "Date de fin de téléchargement : ([0-3][0-9]/[0-1][0-9]/[0-9]{4})"
 START_DATE_REGEX = "Date de début de téléchargement : ([0-3][0-9]/[0-1][0-9]/[0-9]{4})"
@@ -58,9 +59,7 @@ class CDEImporter(importer.ImporterProtocol):
         if row is None:
             return None
 
-        return datetime.strptime(
-            row[COL_DATE], "%d/%m/%Y"
-        ).date()
+        return datetime.strptime(row[COL_DATE], "%d/%m/%Y").date()
 
     def extract(self, file: cache._FileMemo, existing_entries=None) -> list[Any]:
         directives: list[Any] = []
@@ -74,9 +73,8 @@ class CDEImporter(importer.ImporterProtocol):
             lineno: int = index + 2  # entries start at line 2
             meta = data.new_metadata(file.name, lineno)
 
-            transaction_date: date = datetime.strptime(
-                row[COL_DATE], "%d/%m/%Y"
-            ).date()
+            transaction_date: date = datetime.strptime(row[COL_DATE], "%d/%m/%Y").date()
+            op_date: date = datetime.strptime(row[COL_DATE_OP], "%d/%m/%Y")
             label: str = row[COL_LABEL]
             debit: str = row[COL_DEBIT]
             credit: str = row[COL_CREDIT]
@@ -88,7 +86,12 @@ class CDEImporter(importer.ImporterProtocol):
                 amount = Decimal(debit.replace(",", "."))
                 postings.append(
                     data.Posting(
-                        self.account, Amount(amount, "EUR"), None, None, None, None
+                        self.account,
+                        Amount(amount, "EUR"),
+                        None,
+                        None,
+                        None,
+                        {"op-date": op_date},
                     )
                 )
 
@@ -96,7 +99,12 @@ class CDEImporter(importer.ImporterProtocol):
                 amount = Decimal(credit.replace(",", "."))
                 postings.append(
                     data.Posting(
-                        self.account, Amount(amount, "EUR"), None, None, None, None
+                        self.account,
+                        Amount(amount, "EUR"),
+                        None,
+                        None,
+                        None,
+                        {"op-date": op_date},
                     )
                 )