diff --git a/src/arena.c b/src/arena.c
index 3f90a07d..55f09a60 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -128,7 +128,7 @@ static bool mi_arena_alloc(mi_arena_t* arena, size_t blocks, mi_bitmap_index_t*
   Arena cache
 ----------------------------------------------------------- */
 #define MI_CACHE_MAX (256) 
-#define MI_MAX_NUMA  (8)
+#define MI_MAX_NUMA  (4)
 
 #define MI_SLOT_IN_USE ((void*)1)