diff --git a/appveyor.yml b/appveyor.yml
index 520c0793..6b91be43 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -16,6 +16,7 @@ configuration:
 version: '{branch}-{build}'
 
 init:
+- echo %NUMBER_OF_PROCESSORS%
 - echo %PLATFORM%
 - echo %APPVEYOR_BUILD_WORKER_IMAGE%
 - set arch=