diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index e50902b68..99860ce2e 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -96,7 +96,7 @@ jobs:
       conda install --yes ninja
       mkdir build 
       cd build
-      C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat
+      "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"
       cmake -G "Ninja" -DCMAKE_C_COMPILER=clang-cl -DCMAKE_CXX_COMPILER=clang-cl -DMSVC_STATIC_CRT=ON ..
       cmake --build . --config Release