diff --git a/pkg/cmd/util/helpers.go b/pkg/cmd/util/helpers.go
index 6d0982da..5ad4269e 100644
--- a/pkg/cmd/util/helpers.go
+++ b/pkg/cmd/util/helpers.go
@@ -519,7 +519,7 @@ func AddChunkSizeFlag(cmd *cobra.Command, value *int64) {
 }
 
 func AddLabelSelectorFlagVar(cmd *cobra.Command, p *string) {
-	cmd.Flags().StringVarP(p, "selector", "l", *p, "Selector (label query) to filter on, supports '=', '==', and '!='.(e.g. -l key1=value1,key2=value2). Matching objects must satisfy all of the specified label constraints.")
+	cmd.Flags().StringVarP(p, "selector", "l", *p, "Selector (label query) to filter on, supports '=', '==', '!=', 'in', 'notin'.(e.g. -l key1=value1,key2=value2,key3 in (value3)). Matching objects must satisfy all of the specified label constraints.")
 }
 
 func AddPruningFlags(cmd *cobra.Command, prune *bool, pruneAllowlist *[]string, all *bool, applySetRef *string) {