diff --git a/test/run.py b/test/run.py
index 0370d69b..ba75471d 100644
--- a/test/run.py
+++ b/test/run.py
@@ -36,7 +36,7 @@ sanitizerFlags = sanitizersFlags[sanitizer]
 
 if osName == 'Windows':
     os.environ['CC'] = 'clang-cl'
-    # os.environ['CXX'] = 'clang-cl'
+    os.environ['CXX'] = 'clang-cl'
 
 cmakeCmd = 'cmake -DCMAKE_BUILD_TYPE=Debug {} {} ..'.format(generator, sanitizerFlags)
 print(cmakeCmd)