diff --git a/CI/build-3.9-VS2017.bat b/CI/build-3.9-VS2017.bat
index 4ea5a84c470c937508ffadc6cd8a1c5f2b62390d..8d6a830b0dfdbd29b013f10fd7c57ecb63fc1d94 100644
--- a/CI/build-3.9-VS2017.bat
+++ b/CI/build-3.9-VS2017.bat
@@ -1,4 +1,4 @@
 set PATH=C:\Program Files\Python39;C:\Program Files\Python39\Scripts;C:\Program Files\CMake\bin;%PATH%
-C:\Program Files\Python39\python -m venv .
+"C:\Program Files\Python39\python -m venv ."
 call .\Scripts\activate
 python setup.py bdist_wheel --dist-dir dist3