diff --git a/setup.py b/setup.py
index de42708..73d08ac 100644
--- a/setup.py
+++ b/setup.py
@@ -29,6 +29,7 @@ setup(
                  "Operating System :: MacOS :: MacOS X",
                  "Operating System :: POSIX :: Linux",
                  "Operating System :: POSIX :: BSD :: FreeBSD",
+                 "Operating System :: POSIX :: BSD :: OpenBSD",
                  "Programming Language :: Python",
                  "Programming Language :: Python :: 2.6",
                  "Programming Language :: Python :: 2.7",