diff --git a/cmd/kube-controller-manager/app/core.go b/cmd/kube-controller-manager/app/core.go
index c36a1069ee7..346006d3a84 100644
--- a/cmd/kube-controller-manager/app/core.go
+++ b/cmd/kube-controller-manager/app/core.go
@@ -156,13 +156,13 @@ func startNodeIpamController(ctx ControllerContext) (http.Handler, bool, error)
 	}
 
 	var nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6 int
-	if utilfeature.DefaultFeatureGate.Enabled(features.IPv6DualStack) {
+	if dualStack {
 		// only --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 supported with dual stack clusters.
 		// --node-cidr-mask-size flag is incompatible with dual stack clusters.
 		nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6, err = setNodeCIDRMaskSizesDualStack(ctx.ComponentConfig.NodeIPAMController)
 	} else {
 		// only --node-cidr-mask-size supported with single stack clusters.
-		// --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 flags are incompatible with dual stack clusters.
+		// --node-cidr-mask-size-ipv4 and --node-cidr-mask-size-ipv6 flags are incompatible with single stack clusters.
 		nodeCIDRMaskSizeIPv4, nodeCIDRMaskSizeIPv6, err = setNodeCIDRMaskSizes(ctx.ComponentConfig.NodeIPAMController)
 	}