diff --git a/pkg/controller/node/ipam/sync/sync.go b/pkg/controller/node/ipam/sync/sync.go
index 737826547c..71489b8bac 100644
--- a/pkg/controller/node/ipam/sync/sync.go
+++ b/pkg/controller/node/ipam/sync/sync.go
@@ -244,7 +244,7 @@ func (op *updateOp) validateRange(ctx context.Context, sync *NodeSync, node *v1.
 // alias.
 func (op *updateOp) updateNodeFromAlias(ctx context.Context, sync *NodeSync, node *v1.Node, aliasRange *net.IPNet) error {
 	if sync.mode != SyncFromCloud {
-		fmt.Errorf("Detect mode %q while expect mode %q when syncing from cloud", sync.mode, SyncFromCloud)
+		glog.Warningf("Detect mode %q while expect to sync from cloud", sync.mode
 	}
 
 	glog.V(2).Infof("Updating node spec with alias range, node.PodCIDR = %v", aliasRange)
@@ -274,7 +274,7 @@ func (op *updateOp) updateNodeFromAlias(ctx context.Context, sync *NodeSync, nod
 // updateAliasFromNode updates the cloud alias given the node allocation.
 func (op *updateOp) updateAliasFromNode(ctx context.Context, sync *NodeSync, node *v1.Node) error {
 	if sync.mode != SyncFromCluster {
-		fmt.Errorf("Detect mode %q while expect mode %q when syncing from cluster", sync.mode, SyncFromCluster)
+		glog.Warningf("Detect mode %q while expect to sync from cluster", sync.mode)
 	}
 
 	_, aliasRange, err := net.ParseCIDR(node.Spec.PodCIDR)