diff --git a/ihatemoney/tests/common/ihatemoney_testcase.py b/ihatemoney/tests/common/ihatemoney_testcase.py
index 0459c150..eda86ab7 100644
--- a/ihatemoney/tests/common/ihatemoney_testcase.py
+++ b/ihatemoney/tests/common/ihatemoney_testcase.py
@@ -74,13 +74,13 @@ class BaseTestCase(TestCase):
             follow_redirects=follow_redirects,
         )
 
-    def import_project(self, id, data, expected_code=200):
+    def import_project(self, id, data, success=True):
         resp = self.client.post(
             f"/{id}/import",
             data=data,
-            follow_redirects=True,
+            # follow_redirects=True,
         )
-        self.assertEqual(resp.status_code, expected_code)
+        self.assertEqual("/{id}/edit" in str(resp.response), not success)
 
     def create_project(self, id, default_currency="XXX", name=None, password=None):
         name = name or str(id)
diff --git a/ihatemoney/web.py b/ihatemoney/web.py
index c7deea00..9e0e5eeb 100644
--- a/ihatemoney/web.py
+++ b/ihatemoney/web.py
@@ -444,7 +444,6 @@ def edit_project():
 @main.route("/<project_id>/import", methods=["POST"])
 def import_project():
     form = ImportProjectForm()
-    result = 200
     if form.validate():
         try:
             data = form.file.data
@@ -497,13 +496,10 @@ def import_project():
             return redirect(url_for("main.list_bills"))
         except ValueError as b:
             flash(b.args[0], category="danger")
-            result = 400
     else:
         for component, errors in form.errors.items():
             flash(_(component + ": ") + ", ".join(errors), category="danger")
-        result = 400
-
-    return redirect(url_for(".edit_project"), code=result)
+    return redirect(request.headers.get("Referer") or url_for(".edit_project"))
 
 
 @main.route("/<project_id>/delete", methods=["POST"])