diff --git a/backend/app/service/website.go b/backend/app/service/website.go
index 35dcca161..67516e4f3 100644
--- a/backend/app/service/website.go
+++ b/backend/app/service/website.go
@@ -526,7 +526,7 @@ func (w WebsiteService) CreateWebsiteDomain(create request.WebsiteDomainCreate)
 				for _, domain := range domainModels {
 					wafSite.Domains = append(wafSite.Domains, domain.Domain)
 					if domain.Port != 80 && domain.Port != 443 {
-						wafSite.Host = append(wafSite.Host, domain.Domain+":"+string(rune(domain.Port)))
+						wafSite.Host = append(wafSite.Host, domain.Domain+":"+strconv.Itoa(domain.Port))
 					}
 				}
 				if len(wafSite.Host) == 0 {
@@ -619,7 +619,7 @@ func (w WebsiteService) DeleteWebsiteDomain(domainId uint) error {
 				oldHostArray := wafSite.Host
 				var newHostArray []string
 				for _, host := range oldHostArray {
-					if host == webSiteDomain.Domain+":"+string(rune(webSiteDomain.Port)) {
+					if host == webSiteDomain.Domain+":"+strconv.Itoa(webSiteDomain.Port) {
 						continue
 					}
 					newHostArray = append(newHostArray, host)
diff --git a/backend/app/service/website_utils.go b/backend/app/service/website_utils.go
index 754330c8f..730ca382e 100644
--- a/backend/app/service/website_utils.go
+++ b/backend/app/service/website_utils.go
@@ -316,7 +316,7 @@ func createWafConfig(website *model.Website, domains []model.WebsiteDomain) erro
 
 	for _, domain := range domains {
 		wafWebsite.Domains = append(wafWebsite.Domains, domain.Domain)
-		wafWebsite.Host = append(wafWebsite.Host, domain.Domain+":"+string(rune(domain.Port)))
+		wafWebsite.Host = append(wafWebsite.Host, domain.Domain+":"+strconv.Itoa(domain.Port))
 	}
 	websitesArray = append(websitesArray, wafWebsite)
 	websitesContent, err := json.Marshal(websitesArray)