diff --git a/cmd/kube-controller-manager/app/options/options.go b/cmd/kube-controller-manager/app/options/options.go
index 7d81d8e276d..dec8d1f1adc 100644
--- a/cmd/kube-controller-manager/app/options/options.go
+++ b/cmd/kube-controller-manager/app/options/options.go
@@ -67,7 +67,7 @@ func NewCMServer() *CMServer {
 			ConcurrentJobSyncs:                              5,
 			ConcurrentResourceQuotaSyncs:                    5,
 			ConcurrentDeploymentSyncs:                       5,
-			ConcurrentNamespaceSyncs:                        5,
+			ConcurrentNamespaceSyncs:                        10,
 			ConcurrentSATokenSyncs:                          5,
 			LookupCacheSizeForRC:                            4096,
 			LookupCacheSizeForRS:                            4096,