diff --git a/tests/test_mem_eff_attention.py b/tests/test_mem_eff_attention.py
index f33c7f456..14027a164 100644
--- a/tests/test_mem_eff_attention.py
+++ b/tests/test_mem_eff_attention.py
@@ -672,6 +672,8 @@ def test_backward(
     if op_bw == fmha.ck.BwOp:
         op_fw = fmha.ck.FwOp
         if dtype == torch.bfloat16:
+            ## bfloat16 testing can be enabled by export ENABLE_HIP_FMHA_RTN_BF16_CONVERT=1 when
+            ## building xformers and get accurate results
             pytest.skip(
                 "CK Fmha backward for bfloat16 currently is not very accurate for some cases!"
             )