diff --git a/appveyor.yml b/appveyor.yml
index 9eb625c02..d1d74526e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,4 +2,7 @@ build:
   project: build3/vs2010/0_Bullet3Solution.sln
 
 before_build:
-  build3/vs2010.bat
+  - echo %CD%
+  - ps: cd build3
+  - echo %CD%
+  vs2010.bat