diff --git a/build_win32.cmd b/build_win32.cmd
index 02c48246..8fb49b4a 100644
--- a/build_win32.cmd
+++ b/build_win32.cmd
@@ -5,12 +5,12 @@ echo BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
 echo FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
 echo.
 
-SET PKTH_BaseDir=%1
-SET PATH=%PKTH_BaseDir%\qt\bin;%PKTH_BaseDir%\mingw32\bin;%PATH%
+SET PATH=%POKERTH_WIN32_LIB_DIR%\qt\bin;%POKERTH_WIN32_LIB_DIR%\mingw32\bin;%PATH%
 SET QMAKESPEC=win32-g++
-SET QTDIR=%PKTH_BaseDir%\qt
+SET QTDIR=%POKERTH_WIN32_LIB_DIR%\qt
 
 qmake DEFINES+=BOOST_USE_WINDOWS_H pokerth.pro
 mingw32-make release
 REM Add automatic packaging or copying here.
 mingw32-make distclean
+