diff --git a/Superbuild/CMake/External_zlib.cmake b/Superbuild/CMake/External_zlib.cmake
index 0091e902f02c97da6f9b5f7b3be492c99567f30e..a730efae00b594f67a5319a1759fa54bee6ffcb0 100644
--- a/Superbuild/CMake/External_zlib.cmake
+++ b/Superbuild/CMake/External_zlib.cmake
@@ -10,8 +10,7 @@ ADD_SYSTEM_PREFIX(PROJECT ${proj} CMAKE_ALIAS ZLIB_ROOT)
 if(USE_SYSTEM_ZLIB)
   find_package(ZLIB REQUIRED)
   add_custom_target(${proj})
-  set(ZLIB_ROOT ${ZLIB_INCLUDE_DIR}/..)
-  message(STATUS "  Using Zlib system version : ${ZLIB_ROOT}")
+  message(STATUS "  Using Zlib system version")
 else()
   SETUP_SUPERBUILD(PROJECT ${proj})
   message(STATUS "  Using zlib SuperBuild version")