diff --git a/build_release_windows.bat b/build_release_windows.bat
index ce970fe..8ae06f2 100755
--- a/build_release_windows.bat
+++ b/build_release_windows.bat
@@ -50,7 +50,7 @@ cd ..\build-fg32-compositor
 cmake ..\flightgear -G "Visual Studio 14" ^
                     -DMSVC_3RDPARTY_ROOT=%WORKSPACE%/windows-3rd-party/msvc140 ^
                     -DCMAKE_INSTALL_PREFIX:PATH=%WORKSPACE%/install/msvc140/compositor ^
-                    -DCMAKE_PREFIX_PATH:PATH=%OSG32%; %WORKSPACE%/install/msvc140/ ^
+                    -DCMAKE_PREFIX_PATH:PATH=%OSG32%;%WORKSPACE%/install/msvc140/ ^
                     -DBOOST_ROOT=%WORKSPACE%/windows-3rd-party ^
                     -DOSG_FSTREAM_EXPORT_FIXED=1 ^
                     -DCMAKE_PREFIX_PATH=%QT5SDK32%;%OSG32% ^