diff --git a/activesupport/test/cache/stores/mem_cache_store_test.rb b/activesupport/test/cache/stores/mem_cache_store_test.rb
index fe6ca62458..ebbed847bc 100644
--- a/activesupport/test/cache/stores/mem_cache_store_test.rb
+++ b/activesupport/test/cache/stores/mem_cache_store_test.rb
@@ -202,7 +202,7 @@ class MemCacheStoreTest < ActiveSupport::TestCase
     end
 
     def store
-      [:mem_cache_store, ENV["MEMCACHE_SERVERS"] || "localhost:11211"]
+      [:mem_cache_store]
     end
 
     def emulating_latency