diff --git a/appveyor.yml b/appveyor.yml
index 3c36c2fcd3..84bdb2355d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,7 @@
 os: Visual Studio 2017
 platform:
 - Any CPU
+skip_branch_with_pr: true
 configuration:
 - Release
 environment: