diff --git a/pandas/tests/reshape/concat/test_concat.py b/pandas/tests/reshape/concat/test_concat.py
index 57b0462710bc5..5fe80e5d9ed22 100644
--- a/pandas/tests/reshape/concat/test_concat.py
+++ b/pandas/tests/reshape/concat/test_concat.py
@@ -650,7 +650,7 @@ def test_concat_posargs_deprecation(all_parsers):
         "except for the argument 'objs' will be keyword-only"
     )
     with tm.assert_produces_warning(FutureWarning, match=msg):
-        concat([df, df2], " ")
+       result = concat([df, df2], " ")
     expected = DataFrame([[1,2,3],[4,5,6]], index=["a","b"])
     tm.assert_frame_equal(result, expected)