diff --git a/pythonosc/osc_message.py b/pythonosc/osc_message.py
index 4918cb2..55b0a0e 100644
--- a/pythonosc/osc_message.py
+++ b/pythonosc/osc_message.py
@@ -61,6 +61,8 @@ def _parse_datagram(self) -> None:
                     val = True
                 elif param == "F":  # False.
                     val = False
+                elif param == "N":  # Nil.
+                    val = None
                 elif param == "[":  # Array start.
                     array = []  # type: List[Any]
                     param_stack[-1].append(array)
diff --git a/pythonosc/osc_message_builder.py b/pythonosc/osc_message_builder.py
index 84b569b..3864ef5 100644
--- a/pythonosc/osc_message_builder.py
+++ b/pythonosc/osc_message_builder.py
@@ -5,14 +5,11 @@
 
 from typing import List, Tuple, Union, Any, Optional
 
-
 ArgValue = Union[str, bytes, bool, int, float, osc_types.MidiPacket, list]
 
-
 class BuildError(Exception):
     """Error raised when an incomplete message is trying to be built."""
 
-
 class OscMessageBuilder(object):
     """Builds arbitrary OscMessage instances."""
 
diff --git a/pythonosc/test/test_osc_message.py b/pythonosc/test/test_osc_message.py
index 9ac2607..2268fb6 100644
--- a/pythonosc/test/test_osc_message.py
+++ b/pythonosc/test/test_osc_message.py
@@ -34,7 +34,8 @@
     b"/SYNC\x00\x00\x00"
     b"T"  # True
     b"F"  # False
-    b"[]th\x00\x00"  # Empty array
+    b"N"  # Nil
+    b"[]th\x00"  # Empty array
     b"\x00\x00\x00\x00\x00\x00\x00\x00"
     b"\x00\x00\x00\xe8\xd4\xa5\x10\x00"  # 1000000000000
 )
@@ -100,13 +101,14 @@ def test_all_non_standard_params(self):
         msg = osc_message.OscMessage(_DGRAM_ALL_NON_STANDARD_TYPES_OF_PARAMS)
 
         self.assertEqual("/SYNC", msg.address)
-        self.assertEqual(5, len(msg.params))
+        self.assertEqual(6, len(msg.params))
         self.assertEqual(True, msg.params[0])
         self.assertEqual(False, msg.params[1])
-        self.assertEqual([], msg.params[2])
-        self.assertEqual((datetime(1900, 1, 1, 0, 0, 0), 0), msg.params[3])
-        self.assertEqual(1000000000000, msg.params[4])
-        self.assertEqual(5, len(list(msg)))
+        self.assertEqual(None, msg.params[2])
+        self.assertEqual([], msg.params[3])
+        self.assertEqual((datetime(1900, 1, 1, 0, 0, 0), 0), msg.params[4])
+        self.assertEqual(1000000000000, msg.params[5])
+        self.assertEqual(6, len(list(msg)))
 
     def test_complex_array_params(self):
         msg = osc_message.OscMessage(_DGRAM_COMPLEX_ARRAY_PARAMS)
diff --git a/pythonosc/test/test_osc_message_builder.py b/pythonosc/test/test_osc_message_builder.py
index b2d7296..5208ad9 100644
--- a/pythonosc/test/test_osc_message_builder.py
+++ b/pythonosc/test/test_osc_message_builder.py
@@ -53,7 +53,7 @@ def test_all_param_types(self):
         msg = builder.build()
         self.assertEqual("/SEEK", msg.address)
         self.assertSequenceEqual(
-            [4.0, 2, 1099511627776, "value", True, False, b"\x01\x02\x03", [1, ["abc"]]] * 2 +
+            [4.0, 2, 1099511627776, "value", True, False, b"\x01\x02\x03", [1, ["abc"]], None] * 2 +
             [4278255360, (1, 145, 36, 125), 1e-9],
             msg.params)