diff --git a/modules/auth/repo_form.go b/modules/auth/repo_form.go
index f1130f372b794..e8809136c9d3c 100644
--- a/modules/auth/repo_form.go
+++ b/modules/auth/repo_form.go
@@ -11,6 +11,7 @@ import (
 
 	"code.gitea.io/gitea/models"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/routers/utils"
 
 	"gitea.com/macaron/binding"
@@ -57,11 +58,11 @@ func (f *CreateRepoForm) Validate(ctx *macaron.Context, errs binding.Errors) bin
 // this is used to interact with web ui
 type MigrateRepoForm struct {
 	// required: true
-	CloneAddr    string `json:"clone_addr" binding:"Required"`
-	Service      int    `json:"service"`
-	AuthUsername string `json:"auth_username"`
-	AuthPassword string `json:"auth_password"`
-	AuthToken    string `json:"auth_token"`
+	CloneAddr    string                 `json:"clone_addr" binding:"Required"`
+	Service      structs.GitServiceType `json:"service"`
+	AuthUsername string                 `json:"auth_username"`
+	AuthPassword string                 `json:"auth_password"`
+	AuthToken    string                 `json:"auth_token"`
 	// required: true
 	UID int64 `json:"uid" binding:"Required"`
 	// required: true
diff --git a/routers/repo/migrate.go b/routers/repo/migrate.go
index 34060aabde5ab..19dbfbab405ed 100644
--- a/routers/repo/migrate.go
+++ b/routers/repo/migrate.go
@@ -94,9 +94,11 @@ func handleMigrateError(ctx *context.Context, owner *models.User, err error, nam
 func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
 	ctx.Data["Title"] = ctx.Tr("new_migrate")
 	// Plain git should be first
-	ctx.Data["service"] = form.Service
+	ctx.Data["service"] = structs.GitServiceType(form.Service)
 	ctx.Data["Services"] = append([]structs.GitServiceType{structs.PlainGitService}, structs.SupportedFullGitService...)
 
+	tpl := base.TplName("repo/migrate/" + structs.GitServiceType(form.Service).Name())
+
 	ctxUser := checkContextUser(ctx, form.UID)
 	if ctx.Written() {
 		return
@@ -104,7 +106,7 @@ func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
 	ctx.Data["ContextUser"] = ctxUser
 
 	if ctx.HasError() {
-		ctx.HTML(200, tplMigrate)
+		ctx.HTML(200, tpl)
 		return
 	}
 
@@ -115,11 +117,11 @@ func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
 			addrErr := err.(models.ErrInvalidCloneAddr)
 			switch {
 			case addrErr.IsURLError:
-				ctx.RenderWithErr(ctx.Tr("form.url_error"), tplMigrate, &form)
+				ctx.RenderWithErr(ctx.Tr("form.url_error"), tpl, &form)
 			case addrErr.IsPermissionDenied:
-				ctx.RenderWithErr(ctx.Tr("repo.migrate.permission_denied"), tplMigrate, &form)
+				ctx.RenderWithErr(ctx.Tr("repo.migrate.permission_denied"), tpl, &form)
 			case addrErr.IsInvalidPath:
-				ctx.RenderWithErr(ctx.Tr("repo.migrate.invalid_local_path"), tplMigrate, &form)
+				ctx.RenderWithErr(ctx.Tr("repo.migrate.invalid_local_path"), tpl, &form)
 			default:
 				ctx.ServerError("Unknown error", err)
 			}
@@ -159,7 +161,7 @@ func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
 
 	err = models.CheckCreateRepository(ctx.User, ctxUser, opts.RepoName)
 	if err != nil {
-		handleMigrateError(ctx, ctxUser, err, "MigratePost", tplMigrate, &form)
+		handleMigrateError(ctx, ctxUser, err, "MigratePost", tpl, &form)
 		return
 	}
 
@@ -169,5 +171,5 @@ func MigratePost(ctx *context.Context, form auth.MigrateRepoForm) {
 		return
 	}
 
-	handleMigrateError(ctx, ctxUser, err, "MigratePost", tplMigrate, &form)
+	handleMigrateError(ctx, ctxUser, err, "MigratePost", tpl, &form)
 }
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index 6792f7444b062..6c0d8c1b329f2 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -13231,6 +13231,12 @@
       },
       "x-go-package": "code.gitea.io/gitea/modules/structs"
     },
+    "GitServiceType": {
+      "description": "GitServiceType represents a git service",
+      "type": "integer",
+      "format": "int64",
+      "x-go-package": "code.gitea.io/gitea/modules/structs"
+    },
     "GitTreeResponse": {
       "description": "GitTreeResponse returns a git tree",
       "type": "object",
@@ -13658,9 +13664,7 @@
           "x-go-name": "RepoName"
         },
         "service": {
-          "type": "integer",
-          "format": "int64",
-          "x-go-name": "Service"
+          "$ref": "#/definitions/GitServiceType"
         },
         "uid": {
           "type": "integer",