--- src/hb-common.h
+++ src/hb-common.h
@@ -331,7 +331,9 @@
    *
    *   http://lists.freedesktop.org/archives/harfbuzz/2014-March/004150.html
    */
+#if !defined _MSC_VER /* avoid clang-cl -Wmicrosoft-enum-value */
   _HB_SCRIPT_MAX_VALUE				= HB_TAG_MAX, /*< skip >*/
+#endif
   _HB_SCRIPT_MAX_VALUE_SIGNED			= HB_TAG_MAX_SIGNED /*< skip >*/
 
 } hb_script_t;