diff --git a/tests/sonic_xcvr/test_xcvr_field.py b/tests/sonic_xcvr/test_xcvr_field.py
index 477ad04d4..6f49e0d0d 100644
--- a/tests/sonic_xcvr/test_xcvr_field.py
+++ b/tests/sonic_xcvr/test_xcvr_field.py
@@ -230,6 +230,6 @@ def test_decode(self):
 class TestDateField(object):
     def test_decode(self):
         field = mem_map.get_field("Date")
-        data = bytearray(b'\x32\x31\x31\x30\x32\x30\x00')
+        data = bytearray(b'\x32\x31\x31\x30\x32\x30\x00\x00')
         decoded = field.decode(data)
-        assert decoded == "2021-10-22 "
+        assert decoded == "2021-10-20 \0\0"