diff --git a/cmake/zlib.cmake b/cmake/zlib.cmake
index 460d87ac61d6..633ca494d3ac 100644
--- a/cmake/zlib.cmake
+++ b/cmake/zlib.cmake
@@ -60,6 +60,8 @@ FUNCTION(FIND_SYSTEM_ZLIB)
       TARGET_INCLUDE_DIRECTORIES(zlib_interface SYSTEM INTERFACE
         ${ZLIB_INCLUDE_DIR})
     ENDIF()
+    SET(ZLIB_FOUND ${ZLIB_FOUND} PARENT_SCOPE)
+    SET(ZLIB_VERSION ${ZLIB_VERSION} PARENT_SCOPE)
   ENDIF()
 ENDFUNCTION(FIND_SYSTEM_ZLIB)