diff --git a/setup.py b/setup.py
index f20496b0..cd3fbf4d 100644
--- a/setup.py
+++ b/setup.py
@@ -68,7 +68,7 @@ def get_version(version_tuple):
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
-        "Programming Language :: Python :: Implementation :: PyPy"
+        "Programming Language :: Python :: Implementation :: PyPy",
         "Programming Language :: Python :: Implementation :: CPython",
         "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
         "Topic :: Software Development :: Libraries :: Python Modules",