diff --git a/appveyor.yml b/appveyor.yml
index c6eab8e4..74176035 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,9 @@
 image: Visual Studio 2015
 
+branches:
+  only:
+    - master
+
 platform:
   - x86
   - x64