diff --git a/cmd/kube-proxy/app/server.go b/cmd/kube-proxy/app/server.go
index 9ad009c245..37c8667d8d 100644
--- a/cmd/kube-proxy/app/server.go
+++ b/cmd/kube-proxy/app/server.go
@@ -122,7 +122,7 @@ type Options struct {
 func AddFlags(options *Options, fs *pflag.FlagSet) {
 	fs.StringVar(&options.ConfigFile, "config", options.ConfigFile, "The path to the configuration file.")
 	fs.StringVar(&options.WriteConfigTo, "write-config-to", options.WriteConfigTo, "If set, write the default configuration values to this file and exit.")
-	fs.BoolVar(&options.CleanupAndExit, "cleanup-iptables", options.CleanupAndExit, "If true cleanup iptables rules and exit.")
+	fs.BoolVar(&options.CleanupAndExit, "cleanup-iptables", options.CleanupAndExit, "If true, cleanup iptables rules and exit.")
 
 	// All flags below here are deprecated and will eventually be removed.
 
diff --git a/cmd/kube-proxy/app/server_test.go b/cmd/kube-proxy/app/server_test.go
index 673ae0ae79..30c0b2025e 100644
--- a/cmd/kube-proxy/app/server_test.go
+++ b/cmd/kube-proxy/app/server_test.go
@@ -195,6 +195,7 @@ func TestProxyServerWithCleanupAndExit(t *testing.T) {
 		assert.Nil(t, err, "unexpected error in NewProxyServer, addr: %s", addr)
 		assert.NotNil(t, proxyserver, "nil proxy server obj, addr: %s", addr)
 		assert.NotNil(t, proxyserver.IptInterface, "nil iptables intf, addr: %s", addr)
+		assert.True(t, proxyserver.CleanupAndExit, "false CleanupAndExit, addr: %s", addr)
 
 		// Clean up config for next test case
 		configz.Delete("componentconfig")