diff --git a/app/controllers/api/v1/pull_requests_controller.rb b/app/controllers/api/v1/pull_requests_controller.rb
index 7dc35feca..a67ff04a3 100644
--- a/app/controllers/api/v1/pull_requests_controller.rb
+++ b/app/controllers/api/v1/pull_requests_controller.rb
@@ -49,7 +49,7 @@ class Api::V1::PullRequestsController < Api::V1::BaseController
 
     @pull = @project.pull_requests.new
     @pull.build_issue title: pull_params[:title], body: pull_params[:body]
-    @pull.from_project            = @project
+    @pull.from_project            = from_project
     @pull.to_ref, @pull.from_ref  = pull_params[:to_ref], pull_params[:from_ref]
     @pull.issue.assignee_id       = pull_params[:assignee_id] if can?(:write, @project)
     @pull.issue.user, @pull.issue.project = current_user, @project