diff --git a/pkg/restore/restore.go b/pkg/restore/restore.go
index c77997132..3c30e4cd2 100644
--- a/pkg/restore/restore.go
+++ b/pkg/restore/restore.go
@@ -1955,6 +1955,11 @@ func hasCSIVolumeSnapshot(ctx *restoreContext, unstructuredPV *unstructured.Unst
 	}
 
 	for _, vs := range ctx.csiVolumeSnapshots {
+		// In some error cases, the VSs' source PVC could be nil. Skip them.
+		if vs.Spec.Source.PersistentVolumeClaimName == nil {
+			continue
+		}
+
 		if pv.Spec.ClaimRef.Name == *vs.Spec.Source.PersistentVolumeClaimName &&
 			pv.Spec.ClaimRef.Namespace == vs.Namespace {
 			return true
diff --git a/pkg/restore/restore_test.go b/pkg/restore/restore_test.go
index 33b6d4a2e..efca33870 100644
--- a/pkg/restore/restore_test.go
+++ b/pkg/restore/restore_test.go
@@ -4044,6 +4044,21 @@ func TestHasCSIVolumeSnapshot(t *testing.T) {
 			},
 			expectedResult: false,
 		},
+		{
+			name: "VS's source PVC is nil, expect false",
+			obj: &unstructured.Unstructured{
+				Object: map[string]interface{}{
+					"kind":       "PersistentVolume",
+					"apiVersion": "v1",
+					"metadata": map[string]interface{}{
+						"namespace": "default",
+						"name":      "test",
+					},
+				},
+			},
+			vs:             builder.ForVolumeSnapshot("velero", "test").Result(),
+			expectedResult: false,
+		},
 		{
 			name: "Find VS, expect true.",
 			obj: &unstructured.Unstructured{