diff --git a/modules/convert/issue.go b/modules/convert/issue.go
index ab1f9f1e63e..a335f6326b9 100644
--- a/modules/convert/issue.go
+++ b/modules/convert/issue.go
@@ -36,6 +36,7 @@ func ToAPIIssue(issue *models.Issue) *api.Issue {
 		Body:     issue.Content,
 		Labels:   ToLabelList(issue.Labels),
 		State:    issue.State(),
+		IsLocked: issue.IsLocked,
 		Comments: issue.NumComments,
 		Created:  issue.CreatedUnix.AsTime(),
 		Updated:  issue.UpdatedUnix.AsTime(),
diff --git a/modules/convert/pull.go b/modules/convert/pull.go
index 6ff88c4d8aa..2fa22efcb38 100644
--- a/modules/convert/pull.go
+++ b/modules/convert/pull.go
@@ -53,6 +53,7 @@ func ToAPIPullRequest(pr *models.PullRequest) *api.PullRequest {
 		Assignee:  apiIssue.Assignee,
 		Assignees: apiIssue.Assignees,
 		State:     apiIssue.State,
+		IsLocked:  apiIssue.IsLocked,
 		Comments:  apiIssue.Comments,
 		HTMLURL:   pr.Issue.HTMLURL(),
 		DiffURL:   pr.Issue.DiffURL(),
diff --git a/modules/structs/issue.go b/modules/structs/issue.go
index eed5bb500b4..dc633dedce1 100644
--- a/modules/structs/issue.go
+++ b/modules/structs/issue.go
@@ -55,6 +55,7 @@ type Issue struct {
 	// type: string
 	// enum: open,closed
 	State    StateType `json:"state"`
+	IsLocked bool      `json:"is_locked"`
 	Comments int       `json:"comments"`
 	// swagger:strfmt date-time
 	Created time.Time `json:"created_at"`
diff --git a/modules/structs/pull.go b/modules/structs/pull.go
index c4ec7d416a9..8dea51f2c68 100644
--- a/modules/structs/pull.go
+++ b/modules/structs/pull.go
@@ -21,6 +21,7 @@ type PullRequest struct {
 	Assignee  *User      `json:"assignee"`
 	Assignees []*User    `json:"assignees"`
 	State     StateType  `json:"state"`
+	IsLocked  bool       `json:"is_locked"`
 	Comments  int        `json:"comments"`
 
 	HTMLURL  string `json:"html_url"`
diff --git a/templates/swagger/v1_json.tmpl b/templates/swagger/v1_json.tmpl
index 4f9c4583265..1f159d64a07 100644
--- a/templates/swagger/v1_json.tmpl
+++ b/templates/swagger/v1_json.tmpl
@@ -12828,6 +12828,10 @@
           "format": "int64",
           "x-go-name": "ID"
         },
+        "is_locked": {
+          "type": "boolean",
+          "x-go-name": "IsLocked"
+        },
         "labels": {
           "type": "array",
           "items": {
@@ -13501,6 +13505,10 @@
           "format": "int64",
           "x-go-name": "ID"
         },
+        "is_locked": {
+          "type": "boolean",
+          "x-go-name": "IsLocked"
+        },
         "labels": {
           "type": "array",
           "items": {