diff --git a/.travis.yml b/.travis.yml
index 899fb55..0574d0e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 # Reference:
 # https://github.com/Microsoft/GSL/blob/master/.travis.yml
 
+if: NOT branch = feature/appveyor
+
 language: cpp
 
 # For Linux, use Ubuntu 18.04 to have g++-10 in Ubuntu Toolchain PPA
diff --git a/appveyor.yml b/appveyor.yml
index 358daca..81c314c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,9 @@
 version: '0.1.{build}'
 
+branches:
+  except:
+    - travis
+
 image: Visual Studio 2019
 
 environment: