diff --git a/appveyor.yml b/appveyor.yml
index c9948ba5f..6a64fb15f 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -29,6 +29,6 @@ install:
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
   - "python --version"
   - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
-
-build:
   - cmd: msbuild windows\xgboost.sln /openmp-
+
+build: off