diff --git a/pkg/scheduler/apis/config/types.go b/pkg/scheduler/apis/config/types.go
index 0ec488195c1..41fb7d92d41 100644
--- a/pkg/scheduler/apis/config/types.go
+++ b/pkg/scheduler/apis/config/types.go
@@ -136,7 +136,7 @@ type Plugins struct {
 	// Filter is a list of plugins that should be invoked when filtering out nodes that cannot run the Pod.
 	Filter PluginSet
 
-	// PostFilter is a list of plugins that are invoked after filtering phase, no matter whether filtering succeeds or not.
+	// PostFilter is a list of plugins that are invoked after filtering phase, but only when no feasible nodes were found for the pod.
 	PostFilter PluginSet
 
 	// PreScore is a list of plugins that are invoked before scoring.
diff --git a/staging/src/k8s.io/kube-scheduler/config/v1beta2/types.go b/staging/src/k8s.io/kube-scheduler/config/v1beta2/types.go
index 5eac53052fc..bbe77cad20d 100644
--- a/staging/src/k8s.io/kube-scheduler/config/v1beta2/types.go
+++ b/staging/src/k8s.io/kube-scheduler/config/v1beta2/types.go
@@ -167,7 +167,7 @@ type Plugins struct {
 	// Filter is a list of plugins that should be invoked when filtering out nodes that cannot run the Pod.
 	Filter PluginSet `json:"filter,omitempty"`
 
-	// PostFilter is a list of plugins that are invoked after filtering phase, no matter whether filtering succeeds or not.
+	// PostFilter is a list of plugins that are invoked after filtering phase, but only when no feasible nodes were found for the pod.
 	PostFilter PluginSet `json:"postFilter,omitempty"`
 
 	// PreScore is a list of plugins that are invoked before scoring.
diff --git a/staging/src/k8s.io/kube-scheduler/config/v1beta3/types.go b/staging/src/k8s.io/kube-scheduler/config/v1beta3/types.go
index 64038aa9937..21c3c18c146 100644
--- a/staging/src/k8s.io/kube-scheduler/config/v1beta3/types.go
+++ b/staging/src/k8s.io/kube-scheduler/config/v1beta3/types.go
@@ -160,7 +160,7 @@ type Plugins struct {
 	// Filter is a list of plugins that should be invoked when filtering out nodes that cannot run the Pod.
 	Filter PluginSet `json:"filter,omitempty"`
 
-	// PostFilter is a list of plugins that are invoked after filtering phase, no matter whether filtering succeeds or not.
+	// PostFilter is a list of plugins that are invoked after filtering phase, but only when no feasible nodes were found for the pod.
 	PostFilter PluginSet `json:"postFilter,omitempty"`
 
 	// PreScore is a list of plugins that are invoked before scoring.