diff --git a/numpy/linalg/tests/test_linalg.py b/numpy/linalg/tests/test_linalg.py
index 24663b1..665bf0e 100644
--- a/numpy/linalg/tests/test_linalg.py
+++ b/numpy/linalg/tests/test_linalg.py
@@ -759,6 +759,9 @@ class TestCond(CondCases):
         for A, p in itertools.product(As, p_neg):
             linalg.cond(A, p)
 
+    @pytest.mark.xfail(True, run=False,
+                       reason="Platform/LAPACK-dependent failure, "
+                              "see gh-18914")
     def test_nan(self):
         # nans should be passed through, not converted to infs
         ps = [None, 1, -1, 2, -2, 'fro']