diff --git a/.github/workflows/build_documents.yml b/.github/workflows/build_documents.yml
index ef373bbb7..0ce5602ad 100644
--- a/.github/workflows/build_documents.yml
+++ b/.github/workflows/build_documents.yml
@@ -39,6 +39,7 @@ jobs:
         #choco install -y lua51
         #choco install -y luarocks
         dir "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build"
+        "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat"
         $env:PATH += "C:\ProgramData\chocolatey\lib\luarocks\luarocks-2.4.4-win32\systree\bin"
         $env:LUA_PATH += "C:\ProgramData\chocolatey\lib\luarocks\luarocks-2.4.4-win32\systree\share\lua\5.1\?.lua;C:\ProgramData\chocolatey\lib\luarocks\luarocks-2.4.4-win32\systree\share\lua\5.1\?\init.lua"
         $env:LUA_CPATH += "C:\ProgramData\chocolatey\lib\luarocks\luarocks-2.4.4-win32\systree\lib\lua\5.1\?.dll"