diff --git a/csla_binary/binary_writer.py b/csla_binary/binary_writer.py
index b836342..daeee28 100644
--- a/csla_binary/binary_writer.py
+++ b/csla_binary/binary_writer.py
@@ -100,6 +100,9 @@ class CslaBinaryWriter:
 		if isinstance(value, bool):
 			return self.write_object_bool(value)
 		
+		if isinstance(value, int):
+			return self.write_object_int32(value)
+		
 		if isinstance(value, Decimal):
 			return self.write_object_decimal(value)