diff --git a/CMakeLists.txt b/CMakeLists.txt
index 85b8251..a222843 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -99,7 +99,7 @@ endif()
 if (MSVC)
     # download 3rdparty dependencies zip, including boost
     ExternalProject_Add(WinDeps
-        SVN_REPOSITORY http://fgfs.goneabitbursar.com/fgwin3rdparty/trunk/msvc100/3rdparty
+        SVN_REPOSITORY http://fgfs.goneabitbursar.com/fgwin3rdparty/trunk/msvc100/${RDPARTY_DIR}
         # extract to current root
         SOURCE_DIR ${CMAKE_BINARY_DIR}/winDeps/${RDPARTY_DIR}
         BINARY_DIR ${CMAKE_BINARY_DIR}