diff --git a/lib/redmine_qbo/patches/issues_controller_patch.rb b/lib/redmine_qbo/patches/issues_controller_patch.rb
index 566e98c..a5ff0de 100644
--- a/lib/redmine_qbo/patches/issues_controller_patch.rb
+++ b/lib/redmine_qbo/patches/issues_controller_patch.rb
@@ -39,7 +39,7 @@ module RedmineQbo
           render :new, status: :unprocessable_entity
         end
 
-        if @issue.project.nil?
+        if @issue.tracker.nil?
           flash[:error] = t :notice_error_tracker_nil 
           render :new, status: :unprocessable_entity
         end