diff --git a/linkhash.h b/linkhash.h
index b9e114b..a606345 100644
--- a/linkhash.h
+++ b/linkhash.h
@@ -340,8 +340,8 @@ static inline unsigned long lh_get_hash(const struct lh_table *t, const void *k)
 /* Don't use this outside of linkhash.h: */
 #ifdef __UNCONST
 #define _LH_UNCONST(a) __UNCONST(a)
-#else
-#define _LH_UNCONST(a) ((void *)(unsigned long)(const void *)(a))
+#else
+#define _LH_UNCONST(a) ((void *)(uintptr_t)(const void *)(a))
 #endif
 
 /**