diff --git a/pandas/tests/arrays/sparse/test_accessor.py b/pandas/tests/arrays/sparse/test_accessor.py
index af53f74dea962..2a5cb0116a6fd 100644
--- a/pandas/tests/arrays/sparse/test_accessor.py
+++ b/pandas/tests/arrays/sparse/test_accessor.py
@@ -10,7 +10,7 @@
 class TestSeriesAccessor(object):
     # TODO: collect other accessor tests
     def test_to_dense(self):
-        s = pd.Series([0, 1, 0, 10], dtype='Sparse[int]')
+        s = pd.Series([0, 1, 0, 10], dtype='Sparse[int64]')
         result = s.sparse.to_dense()
         expected = pd.Series([0, 1, 0, 10])
         tm.assert_series_equal(result, expected)