diff --git a/routers/api/v1/user/app.go b/routers/api/v1/user/app.go
index b88ed6fbd2726..7b69c50d7eb7f 100644
--- a/routers/api/v1/user/app.go
+++ b/routers/api/v1/user/app.go
@@ -88,6 +88,8 @@ func CreateAccessToken(ctx *context.APIContext) {
 	// responses:
 	//   "201":
 	//     "$ref": "#/responses/AccessToken"
+	//   "400":
+	//     "$ref": "#/responses/error"
 
 	form := web.GetForm(ctx).(*api.CreateAccessTokenOption)
 
@@ -139,6 +141,8 @@ func DeleteAccessToken(ctx *context.APIContext) {
 	// responses:
 	//   "204":
 	//     "$ref": "#/responses/empty"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 	//   "422":
 	//     "$ref": "#/responses/error"
 
@@ -199,6 +203,8 @@ func CreateOauth2Application(ctx *context.APIContext) {
 	// responses:
 	//   "201":
 	//     "$ref": "#/responses/OAuth2Application"
+	//   "400":
+	//     "$ref": "#/responses/error"
 
 	data := web.GetForm(ctx).(*api.CreateOAuth2ApplicationOptions)
 
@@ -272,6 +278,8 @@ func DeleteOauth2Application(ctx *context.APIContext) {
 	// responses:
 	//   "204":
 	//     "$ref": "#/responses/empty"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 	appID := ctx.ParamsInt64(":id")
 	if err := models.DeleteOAuth2Application(appID, ctx.User.ID); err != nil {
 		if models.IsErrOAuthApplicationNotFound(err) {
@@ -302,6 +310,8 @@ func GetOauth2Application(ctx *context.APIContext) {
 	// responses:
 	//   "200":
 	//     "$ref": "#/responses/OAuth2Application"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 	appID := ctx.ParamsInt64(":id")
 	app, err := models.GetOAuth2ApplicationByID(appID)
 	if err != nil {
@@ -340,6 +350,8 @@ func UpdateOauth2Application(ctx *context.APIContext) {
 	// responses:
 	//   "200":
 	//     "$ref": "#/responses/OAuth2Application"
+	//   "404":
+	//     "$ref": "#/responses/notFound"
 	appID := ctx.ParamsInt64(":id")
 
 	data := web.GetForm(ctx).(*api.CreateOAuth2ApplicationOptions)
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index 4be2718ef16cd..b548f25f4ff0f 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -10068,6 +10068,9 @@
         "responses": {
           "201": {
             "$ref": "#/responses/OAuth2Application"
+          },
+          "400": {
+            "$ref": "#/responses/error"
           }
         }
       }
@@ -10095,6 +10098,9 @@
         "responses": {
           "200": {
             "$ref": "#/responses/OAuth2Application"
+          },
+          "404": {
+            "$ref": "#/responses/notFound"
           }
         }
       },
@@ -10120,6 +10126,9 @@
         "responses": {
           "204": {
             "$ref": "#/responses/empty"
+          },
+          "404": {
+            "$ref": "#/responses/notFound"
           }
         }
       },
@@ -10153,6 +10162,9 @@
         "responses": {
           "200": {
             "$ref": "#/responses/OAuth2Application"
+          },
+          "404": {
+            "$ref": "#/responses/notFound"
           }
         }
       }
@@ -11492,6 +11504,9 @@
         "responses": {
           "201": {
             "$ref": "#/responses/AccessToken"
+          },
+          "400": {
+            "$ref": "#/responses/error"
           }
         }
       }
@@ -11526,6 +11541,9 @@
           "204": {
             "$ref": "#/responses/empty"
           },
+          "404": {
+            "$ref": "#/responses/notFound"
+          },
           "422": {
             "$ref": "#/responses/error"
           }