diff --git a/pkg/util/command_util.go b/pkg/util/command_util.go
index b049aa06c..4330d6060 100644
--- a/pkg/util/command_util.go
+++ b/pkg/util/command_util.go
@@ -23,6 +23,7 @@ import (
 	"os"
 	"os/user"
 	"path/filepath"
+	reflect "reflect"
 	"strconv"
 	"strings"
 
@@ -370,6 +371,10 @@ func GetUIDAndGIDFromString(userGroupString string, fallbackToUID bool) (uint32,
 		groupStr = userAndGroup[1]
 	}
 
+	if reflect.TypeOf(userStr).String() == "int" {
+		return 0, 0, nil
+	}
+
 	uidStr, gidStr, err := GetUserFromUsername(userStr, groupStr, fallbackToUID)
 	if err != nil {
 		return 0, 0, err