diff --git a/models/migrations/migrations.go b/models/migrations/migrations.go
index ce3f77ba4e..66923fd50f 100644
--- a/models/migrations/migrations.go
+++ b/models/migrations/migrations.go
@@ -188,6 +188,8 @@ var migrations = []Migration{
 	NewMigration("Fix topic repository count", fixTopicRepositoryCount),
 	// v127 -> v128
 	NewMigration("add repository code language statistics", addLanguageStats),
+	// v128 -> v129
+	NewMigration("Add IsSystemWebhook column to webhooks table", addSystemWebhookColumn),
 }
 
 // Migrate database to current version
diff --git a/models/migrations/v128.go b/models/migrations/v128.go
new file mode 100644
index 0000000000..5a7caf582a
--- /dev/null
+++ b/models/migrations/v128.go
@@ -0,0 +1,22 @@
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package migrations
+
+import (
+	"fmt"
+
+	"xorm.io/xorm"
+)
+
+func addSystemWebhookColumn(x *xorm.Engine) error {
+	type Webhook struct {
+		IsSystemWebhook bool `xorm:"NOT NULL DEFAULT 0"`
+	}
+
+	if err := x.Sync2(new(Webhook)); err != nil {
+		return fmt.Errorf("Sync2: %v", err)
+	}
+	return nil
+}
diff --git a/models/webhook.go b/models/webhook.go
index 626489b342..f55f93529a 100644
--- a/models/webhook.go
+++ b/models/webhook.go
@@ -90,21 +90,22 @@ const (
 
 // Webhook represents a web hook object.
 type Webhook struct {
-	ID           int64  `xorm:"pk autoincr"`
-	RepoID       int64  `xorm:"INDEX"`
-	OrgID        int64  `xorm:"INDEX"`
-	URL          string `xorm:"url TEXT"`
-	Signature    string `xorm:"TEXT"`
-	HTTPMethod   string `xorm:"http_method"`
-	ContentType  HookContentType
-	Secret       string `xorm:"TEXT"`
-	Events       string `xorm:"TEXT"`
-	*HookEvent   `xorm:"-"`
-	IsSSL        bool `xorm:"is_ssl"`
-	IsActive     bool `xorm:"INDEX"`
-	HookTaskType HookTaskType
-	Meta         string     `xorm:"TEXT"` // store hook-specific attributes
-	LastStatus   HookStatus // Last delivery status
+	ID              int64 `xorm:"pk autoincr"`
+	RepoID          int64 `xorm:"INDEX"` // An ID of 0 indicates either a default or system webhook
+	OrgID           int64 `xorm:"INDEX"`
+	IsSystemWebhook bool
+	URL             string `xorm:"url TEXT"`
+	Signature       string `xorm:"TEXT"`
+	HTTPMethod      string `xorm:"http_method"`
+	ContentType     HookContentType
+	Secret          string `xorm:"TEXT"`
+	Events          string `xorm:"TEXT"`
+	*HookEvent      `xorm:"-"`
+	IsSSL           bool `xorm:"is_ssl"`
+	IsActive        bool `xorm:"INDEX"`
+	HookTaskType    HookTaskType
+	Meta            string     `xorm:"TEXT"` // store hook-specific attributes
+	LastStatus      HookStatus // Last delivery status
 
 	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`