diff --git a/backends/test/hta_partitioner_demo.py b/backends/test/hta_partitioner_demo.py
index 1c78356139a..da0a00c2d03 100644
--- a/backends/test/hta_partitioner_demo.py
+++ b/backends/test/hta_partitioner_demo.py
@@ -57,7 +57,8 @@ def forward(self, x_raw, h, c):
         input_x = torch.ones([1, 32])
         input_h = torch.ones([1, 32])
         input_c = torch.ones([1, 32])
-
+        # To avoid `operator torch._ops.aten.mkldnn_rnn_layer.default is not Aten Canonical.`
+        # error
         pattern_lstm_conv_lifted = (
             exir.capture(
                 LSTMConvPattern(),