diff --git a/app.go b/app.go
index 4ee6f02..f633aff 100644
--- a/app.go
+++ b/app.go
@@ -82,8 +82,8 @@ func root() *coral.Command {
 	rootCommand.Flags().StringSliceVar(&opts.ExcludedKinds, "exclude-kind", nil, "resource kind to exclude in the output (singular, case insensitive, glob supported)")
 	rootCommand.Flags().StringSliceVar(&opts.IncludedNames, "include-name", nil, "resource name to include in the output (singular, case insensitive, glob supported)")
 	rootCommand.Flags().StringSliceVar(&opts.ExcludedNames, "exclude-name", nil, "resource name to exclude in the output (singular, case insensitive, glob supported)")
-	rootCommand.Flags().StringSliceVar(&opts.Included, "include", nil, "resource name to include in the output (format {kind}/${name}, case insensitive, glob supported)")
-	rootCommand.Flags().StringSliceVar(&opts.Excluded, "exclude", nil, "resource name to exclude in the output (format {kind}/${name}, case insensitive, glob supported)")
+	rootCommand.Flags().StringSliceVar(&opts.Included, "include", nil, "resource name to include in the output (format <kind>/<name>, case insensitive, glob supported)")
+	rootCommand.Flags().StringSliceVar(&opts.Excluded, "exclude", nil, "resource name to exclude in the output (format <kind>/<name>, case insensitive, glob supported)")
 	rootCommand.Flags().BoolVarP(&opts.StrictKubernetes, "skip-non-k8s", "s", false, "if enabled, any YAMLs that don't contain at least an \"apiVersion\", \"kind\" and \"metadata.name\" will be excluded from the split")
 	rootCommand.Flags().BoolVar(&opts.SortByKind, "sort-by-kind", false, "if enabled, resources are sorted by Kind, a la Helm, before saving them to disk")
 	rootCommand.Flags().BoolVar(&opts.OutputToStdout, "stdout", false, "if enabled, no resource is written to disk and all resources are printed to stdout instead")
diff --git a/slice/validate.go b/slice/validate.go
index 028ca01..78cd9a7 100644
--- a/slice/validate.go
+++ b/slice/validate.go
@@ -5,7 +5,8 @@ import (
 	"regexp"
 )
 
-const regKN = `^[^/]+/[^/]+$`
+var regKN = regexp.MustCompile(`^[^/]+/[^/]+$`)
+
 
 func (s *Split) init() error {
 	s.log.Printf("Loading file %s", s.opts.InputFile)
@@ -65,13 +66,13 @@ func (s *Split) validateFilters() error {
 
 	// Validate included and excluded filters.
 	for _, included := range s.opts.Included {
-		if matched, _ := regexp.MatchString(regKN, included); !matched {
+		if matched := regKN.MatchString(included); !matched {
 			return fmt.Errorf("invalid included pattern %q should be <kind>/<name>", included)
 		}
 	}
 
 	for _, excluded := range s.opts.Excluded {
-		if matched, _ := regexp.MatchString(regKN, excluded); !matched {
+		if matched := regKN.MatchString(excluded); !matched {
 			return fmt.Errorf("invalid excluded pattern %q should be <kind>/<name>", excluded)
 		}
 	}