diff --git a/handlers/sshd_config/fields/utils.go b/handlers/sshd_config/fields/utils.go
index 78ebcc7..eb092d0 100644
--- a/handlers/sshd_config/fields/utils.go
+++ b/handlers/sshd_config/fields/utils.go
@@ -4,9 +4,12 @@ import (
 	docvalues "config-lsp/doc-values"
 	"config-lsp/utils"
 	"os/exec"
+	"regexp"
 	"strings"
 )
 
+var isJustDigitsPattern = regexp.MustCompile(`^\d+$`)
+
 var booleanEnumValue = docvalues.EnumValue{
 	EnforceValues: true,
 	Values: []docvalues.EnumString{