diff --git a/appveyor.yml b/appveyor.yml
index 196b91727..7d5c2b033 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -42,9 +42,8 @@ install:
 before_build:
   - echo Running cmake...
   - cd c:\projects\OpenBLAS
-  - ps: If ($env:COMPILER -eq "clang-cl") { $env:PATH = "C:\Python36-x64;C:\Python36-x64\Scripts;$env:PATH;" }
   - ps: If ($env:COMPILER -eq "clang-cl") { $env:CLCACHE_CL = "clang-cl" }
-  - ps: If ($env:COMPILER -eq "clang-cl") { pip install git+https://github.com/frerich/clcache.git }
+  - ps: If ($env:COMPILER -eq "clang-cl") { pip install git+https://github.com/frerich/clcache.git; $LastExitCode=0 }
   - if [%COMPILER%]==[cl] cmake -G "Visual Studio 12 Win64" .
   - if [%COMPILER%]==[clang-cl] cmake -G "Ninja" -DCMAKE_CXX_COMPILER=clcache -DCMAKE_C_COMPILER=clcache .
   - if [%DYNAMIC_ARCH%]==[ON] cmake -DDYNAMIC_ARCH=ON .