diff --git a/ref-test/app/tools/forms.py b/ref-test/app/tools/forms.py
index 8be1aab..5165d10 100644
--- a/ref-test/app/tools/forms.py
+++ b/ref-test/app/tools/forms.py
@@ -57,5 +57,5 @@ def get_dataset_choices():
     return dataset_choices
 
 def send_errors_to_client(form):
-    errors = [*form.errors]
+    errors = [*form.errors.values()]
     return jsonify({ 'error': errors}), 400
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