diff --git a/setup.py b/setup.py
index a0104c4..d6d48e7 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,8 @@ setup(
         "Environment :: Console",
         "Intended Audience :: Developers",
         "License :: OSI Approved :: BSD License",
-        'Programming Language :: Python :: 3.4',
+        "Programming Language :: Python :: 3.4",
+        "Topic :: Internet :: Name Service (DNS)",
         "Development Status :: 5 - Production/Stable",
         "Operating System :: OS Independent",
     ],