diff --git a/test/e2e/nodefeature/nodefeature.go b/test/e2e/nodefeature/nodefeature.go
index aceb19ed4cb..732b4351395 100644
--- a/test/e2e/nodefeature/nodefeature.go
+++ b/test/e2e/nodefeature/nodefeature.go
@@ -70,6 +70,10 @@ var (
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	KubeletConfigDropInDir = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("KubeletConfigDropInDir"))
 
+	// KubeletSeparateDiskGC (SIG-node, used for testing separate image filesystem <https://kep.k8s.io/4191>)
+	// The tests need separate disk settings on nodes and separate filesystems in storage.conf
+	KubeletSeparateDiskGC = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("KubeletSeparateDiskGC"))
+
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	LSCIQuotaMonitoring = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("LSCIQuotaMonitoring"))
 
@@ -85,27 +89,24 @@ var (
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	PodResources = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("PodResources"))
 
-	// RecursiveReadOnlyMounts (SIG-node, used for testing recursive read-only mounts <https://kep.k8s.io/3857>)
-	RecursiveReadOnlyMounts = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("RecursiveReadOnlyMounts"))
-
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	ProcMountType = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("ProcMountType"))
 
+	// RecursiveReadOnlyMounts (SIG-node, used for testing recursive read-only mounts <https://kep.k8s.io/3857>)
+	RecursiveReadOnlyMounts = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("RecursiveReadOnlyMounts"))
+
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	ResourceMetrics = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("ResourceMetrics"))
 
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	RuntimeHandler = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("RuntimeHandler"))
 
-	// Added to test Swap Feature
-	// This label should be used when testing KEP-2400 (Node Swap Support)
-	Swap = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("NodeSwap"))
-
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	SidecarContainers = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("SidecarContainers"))
 
-	// Sig-node: add e2e tests for KEP-4191
-	KubeletSeparateDiskGC = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("KubeletSeparateDiskGC"))
+	// Added to test Swap Feature
+	// This label should be used when testing KEP-2400 (Node Swap Support)
+	Swap = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("NodeSwap"))
 
 	// TODO: document the feature (owning SIG, when to use this feature for a test)
 	SystemNodeCriticalPod = framework.WithNodeFeature(framework.ValidNodeFeatures.Add("SystemNodeCriticalPod"))