diff --git a/cmake/Modules/FindZLIB.cmake b/cmake/Modules/FindZLIB.cmake
index 6370c771..01197f63 100644
--- a/cmake/Modules/FindZLIB.cmake
+++ b/cmake/Modules/FindZLIB.cmake
@@ -18,6 +18,9 @@ if (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
   # in cache already
   set(ZLIB_FOUND TRUE)
 else (ZLIB_LIBRARIES AND ZLIB_INCLUDE_DIRS)
+  if (WIN32)
+    set(_ZLIB_DIR $ENV{PROGRAMFILES}/GnuWin32)
+  endif (WIN32)
 
   find_path(ZLIB_INCLUDE_DIR
     NAMES