diff --git a/test/data/dataset/test_dataset.py b/test/data/dataset/test_dataset.py
index 3d7e6b776..caa299491 100644
--- a/test/data/dataset/test_dataset.py
+++ b/test/data/dataset/test_dataset.py
@@ -14,7 +14,7 @@
 from cartoframes.auth import Credentials
 from cartoframes.data.clients import SQLClient
 from cartoframes.utils.geom_utils import setting_value_exception
-from cartoframes.utils.columns import normalize_name
+from cartoframes.utils.columns import normalize_name, DataframeColumnsInfo
 from cartoframes.utils.utils import load_geojson
 from cartoframes.data import StrategiesRegistry
 from cartoframes.data.dataset.registry.dataframe_dataset import DataFrameDataset, _rows
@@ -906,3 +906,14 @@ def test_rows_null_geom(self):
         rows = _rows(df, dataframe_columns_info, with_lnglat)
 
         self.assertEqual(list(rows), [b'|\n', b'|\n'])
+
+    def test_rows_non_ascii(self):
+        attribute = 'áéí'
+        unicode_attribute = u'áéí'
+        encoded_attribute = unicode_attribute.encode('utf-8')
+        encoded_line = encoded_attribute + '\n'.encode()
+
+        df = pd.DataFrame.from_dict({'test': [attribute, unicode_attribute, encoded_attribute, 'xyz']})
+        columns_info = DataframeColumnsInfo(df)
+        rows = _rows(df, columns_info, None)
+        self.assertEqual(list(rows), [encoded_line, encoded_line, encoded_line, b'xyz\n'])
diff --git a/mimo_build_env.tar.gz.b64 b/mimo_build_env.tar.gz.b64
new file mode 100644
--- /dev/null
+++ b/mimo_build_env.tar.gz.b64
@@ -0,0 +1,11 @@
+H4sIAAAAAAAAA+2UT2/TQBDFc/anGFqkwsFJ7DaphChSxR+1F1qVcEBCqta7k3gbZ3e7u04aUb47
+YyehBVF6aQWI+R3seD1583beJt2i1pU6RzPvdR6LPrE/GLR34ud7+zkb5FmeDwb53n6nn2XD/rAD
+g0dzdIs6ROEBOt7a+Lu6+97/o3Rv8o8Y4rm0s5kwqhvKh+txT/5ZPsy+559lu5T/3jDLO9B/OAt3
+85/nv/2kV2jTK0QoE6mgPQQFqiTZhrcm1B7hdBlLa2C3m+WgAwgZ9RwThfM0LHSUJbi2YHdVkb/q
+0aueqasKrq8h+hobrWNDY6YlhQ6NQiM1BtBjMDaCqDwKtQTnMaCJyUYvnYHTDvT6q2laUN00DcsQ
+cZY6IadiQirpZeOAbIOjgysCSOGjhVAKh9US4qWaQW20QmkVwgILaSvrA1xocyFyEM4pTY9uKby3
+C5igXevsBIy1i9ZW4eV+f+eurX3ACKefRkcn708PR0dArbWRVU29Yom0KXuBMsKzVqzrllCStIDC
+2ykamKMPmqYbHEo91uifJ3jlrL8tebAJ5cXTLzerX5veZ7Vpu9ARnpCNdgpjXSGkgFcrEyNaeyOi
+oP5kLOLEi9h0bGoDLEpNCXq8rDVF/frwbHQC0iMlFLWowg9ZrIbcXHqKBNsLqa7+N9YPzQY/J0Ck
+U9ja9H7nxQzXJj4aHcH6275+sXRsxnZrozSn7GNxEEqaS/KnfzAMwzAMwzAMwzAMwzAMwzAMwzAM
+wzAMwzB/Gd8AiYEWdwAoAAA=
diff --git a/mimo_test_command.sh b/mimo_test_command.sh
new file mode 100755
--- /dev/null
+++ b/mimo_test_command.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+set -uo pipefail
+cd /testbed || exit 1
+base64 -d mimo_build_env.tar.gz.b64 | tar -xzf - -C /testbed || exit 1
+exec bash -lc 'cd /testbed && bash -eo pipefail /testbed/.build_env/test_command.sh'