diff --git a/validate/validate.go b/validate/validate.go
index 4d1dd635c..418ac07b3 100644
--- a/validate/validate.go
+++ b/validate/validate.go
@@ -10,6 +10,7 @@ import (
 	"os"
 	"path/filepath"
 	"reflect"
+	"regexp"
 	"runtime"
 	"strings"
 	"syscall"