diff --git a/test/adapters/redis_client_test.rb b/test/adapters/redis_client_test.rb
index 0726724e..23501946 100644
--- a/test/adapters/redis_client_test.rb
+++ b/test/adapters/redis_client_test.rb
@@ -84,7 +84,7 @@ def test_dynamic_circuit_breaker
     Thread.current[:sub_resource_name] = "two"
     client.call("get", "foo") # establish connection for second semian
 
-    Thread.current[:sub_resource_name] = "one  "
+    Thread.current[:sub_resource_name] = "one"
     client.call("set", "foo", 2)
 
     @proxy.downstream(:latency, latency: 1000).apply do