diff --git a/moduleroot/appveyor.yml.erb b/moduleroot/appveyor.yml.erb
index 36e56e64cedfc0927e385b8c198e95cc73ad58ef..83d1884da67d899dd1fdfe21217712acecffefca 100644
--- a/moduleroot/appveyor.yml.erb
+++ b/moduleroot/appveyor.yml.erb
@@ -1,5 +1,6 @@
 ---
 version: 1.1.x.{build}
+skip_branch_with_pr: true
 branches:
 <% if ((@configs['branches'] || []) - (@configs['remove_branches'] || [])).any? -%>
   only: