diff --git a/src/rez/tests/test_package_cache.py b/src/rez/tests/test_package_cache.py
index 8a5989c09f..749f12ce54 100644
--- a/src/rez/tests/test_package_cache.py
+++ b/src/rez/tests/test_package_cache.py
@@ -193,7 +193,7 @@ def test_caching_on_resolve_synchronous(self):
 
             # Creating the context will synchronously add variants to the cache
             c = ResolvedContext(
-                ["timestamped-1.2.0", "pyfoo-3.1.0",],
+                ["timestamped-1.2.0", "pyfoo-3.1.0"],
                 package_cache_async=False,
             )