diff --git a/python/pylibcudf/pylibcudf/tests/test_nvtext_generate_ngrams.py b/python/pylibcudf/pylibcudf/tests/test_nvtext_generate_ngrams.py
index aedb4efddd0..5cf9874d595 100644
--- a/python/pylibcudf/pylibcudf/tests/test_nvtext_generate_ngrams.py
+++ b/python/pylibcudf/pylibcudf/tests/test_nvtext_generate_ngrams.py
@@ -49,3 +49,6 @@ def test_hash_character_ngrams(input_col, ngram):
         len(got) == max(0, len(s.as_py()) - ngram + 1)
         for got, s in zip(pa_result, input_col)
     )
+    assert pa_result.type == pa.list_(
+        pa.field("element", pa.uint32(), nullable=False)
+    )