diff --git a/server/controllers/api_controller.go b/server/controllers/api_controller.go
index 3138419146..5cc6f3520a 100644
--- a/server/controllers/api_controller.go
+++ b/server/controllers/api_controller.go
@@ -36,6 +36,7 @@ type APIRequest struct {
 	Repository string `validate:"required"`
 	Ref        string `validate:"required"`
 	Type       string `validate:"required"`
+	PR         int
 	Projects   []string
 	Paths      []struct {
 		Directory string
@@ -214,7 +215,7 @@ func (a *APIController) apiParseAndValidate(r *http.Request) (*APIRequest, *comm
 	return &request, &command.Context{
 		HeadRepo: baseRepo,
 		Pull: models.PullRequest{
-			Num:        0,
+			Num:        request.PR,
 			BaseBranch: request.Ref,
 			HeadBranch: request.Ref,
 			HeadCommit: request.Ref,