diff --git a/src/sakia/gui/navigation/identities/table_model.py b/src/sakia/gui/navigation/identities/table_model.py
index 4e6b2e16fe0959b5a6dcf1160aba088db1919365..83d45ed77a0951b6b050036d1f4c4d57f056c335 100644
--- a/src/sakia/gui/navigation/identities/table_model.py
+++ b/src/sakia/gui/navigation/identities/table_model.py
@@ -8,7 +8,7 @@ from PyQt5.QtCore import (
     QModelIndex,
     QLocale,
     QT_TRANSLATE_NOOP,
-)
+    QCoreApplication)
 from PyQt5.QtGui import QColor, QIcon, QFont
 import logging
 import asyncio
@@ -145,14 +145,14 @@ class IdentitiesTableModel(QAbstractTableModel):
     """
 
     columns_titles = {
-        "uid": lambda: QT_TRANSLATE_NOOP("IdentitiesTableModel", "UID"),
-        "pubkey": lambda: QT_TRANSLATE_NOOP("IdentitiesTableModel", "Pubkey"),
-        "renewed": lambda: QT_TRANSLATE_NOOP("IdentitiesTableModel", "Renewed"),
-        "expiration": lambda: QT_TRANSLATE_NOOP("IdentitiesTableModel", "Expiration"),
-        "publication": lambda: QT_TRANSLATE_NOOP(
+        "uid": QT_TRANSLATE_NOOP("IdentitiesTableModel", "UID"),
+        "pubkey": QT_TRANSLATE_NOOP("IdentitiesTableModel", "Pubkey"),
+        "renewed": QT_TRANSLATE_NOOP("IdentitiesTableModel", "Renewed"),
+        "expiration": QT_TRANSLATE_NOOP("IdentitiesTableModel", "Expiration"),
+        "publication": QT_TRANSLATE_NOOP(
             "IdentitiesTableModel", "Publication"
         ),
-        "block": lambda: QT_TRANSLATE_NOOP("IdentitiesTableModel", "Publication Block"),
+        "block": QT_TRANSLATE_NOOP("IdentitiesTableModel", "Publication Block"),
     }
     columns_ids = (
         "uid",
@@ -248,7 +248,7 @@ class IdentitiesTableModel(QAbstractTableModel):
     def headerData(self, section, orientation, role):
         if role == Qt.DisplayRole:
             col_id = IdentitiesTableModel.columns_ids[section]
-            return IdentitiesTableModel.columns_titles[col_id]()
+            return QCoreApplication.translate("IdentitiesTableModel", IdentitiesTableModel.columns_titles[col_id])
 
     def data(self, index, role):
         if index.isValid() and role == Qt.DisplayRole: