diff --git a/pkg/kubelet/volumemanager/cache/actual_state_of_world.go b/pkg/kubelet/volumemanager/cache/actual_state_of_world.go
index 38b96457593..46cb842baa9 100644
--- a/pkg/kubelet/volumemanager/cache/actual_state_of_world.go
+++ b/pkg/kubelet/volumemanager/cache/actual_state_of_world.go
@@ -281,7 +281,8 @@ type attachedVolume struct {
 	// for this volume and volume expansion on this node should not be retried
 	volumeInUseErrorForExpansion bool
 
-	// persistentVolumeSize records size of the volume when pod was started.
+	// persistentVolumeSize records size of the volume when pod was started or
+	// size after successful completion of volume expansion operation.
 	persistentVolumeSize *resource.Quantity
 }
 
diff --git a/pkg/kubelet/volumemanager/cache/desired_state_of_world.go b/pkg/kubelet/volumemanager/cache/desired_state_of_world.go
index 60f1a56852d..0a999833a5e 100644
--- a/pkg/kubelet/volumemanager/cache/desired_state_of_world.go
+++ b/pkg/kubelet/volumemanager/cache/desired_state_of_world.go
@@ -296,7 +296,8 @@ func (dsw *desiredStateOfWorld) AddPodToVolume(
 		if volumeSpec.PersistentVolume != nil {
 			pvCap := volumeSpec.PersistentVolume.Spec.Capacity.Storage()
 			if pvCap != nil {
-				vmt.persistentVolumeSize = pvCap
+				pvCapCopy := pvCap.DeepCopy()
+				vmt.persistentVolumeSize = &pvCapCopy
 			}
 		}