diff --git a/source/vcpp/buildEnv/build_3_createInstaller.bat b/source/vcpp/buildEnv/build_3_createInstaller.bat
index a42d55ef..5f0ff6a4 100644
--- a/source/vcpp/buildEnv/build_3_createInstaller.bat
+++ b/source/vcpp/buildEnv/build_3_createInstaller.bat
@@ -1,2 +1,2 @@
-%programfiles%\NSIS\makensis.exe ac.nsi
+"%programfiles%\NSIS\makensis.exe" ac.nsi
 pause
\ No newline at end of file