diff --git a/combo/apps/dataviz/views.py b/combo/apps/dataviz/views.py
index d26b8c4b..8f481700 100644
--- a/combo/apps/dataviz/views.py
+++ b/combo/apps/dataviz/views.py
@@ -82,7 +82,7 @@ class DatavizGraphView(DetailView):
         except TemplateSyntaxError:
             return self.error(_('Syntax error in page variable.'))
         except VariableDoesNotExist:
-            return self.error(_('Cannot evaluate page variable.'))
+            return self.error(_('Backoffice preview unavailable.'))
         except HTTPError as e:
             if e.response.status_code == 404:
                 return self.error(_('Visualization not found.'))
diff --git a/tests/test_dataviz.py b/tests/test_dataviz.py
index 8ef5b5ca..4aba5930 100644
--- a/tests/test_dataviz.py
+++ b/tests/test_dataviz.py
@@ -2131,7 +2131,7 @@ def test_chartng_cell_new_api_filter_params_page_variables(app, admin_user, new_
 
     resp = app.get(location)
     assert len(new_api_mock.call['requests']) == 2
-    assert 'Cannot evaluate page variable.' in resp.text
+    assert 'Backoffice preview unavailable.' in resp.text
 
     # simulate call from page view
     app = login(app)
@@ -2190,7 +2190,7 @@ def test_chartng_cell_new_api_filter_params_page_variables_table(new_api_statist
 
     resp = app.get(location)
     assert len(new_api_mock.call['requests']) == 1
-    assert 'Cannot evaluate page variable.' in resp.text
+    assert 'Backoffice preview unavailable.' in resp.text
 
 
 def test_dataviz_check_validity(nocache):