diff --git a/include/mimalloc-internal.h b/include/mimalloc-internal.h
index da123bf6..2ca9d1b8 100644
--- a/include/mimalloc-internal.h
+++ b/include/mimalloc-internal.h
@@ -50,8 +50,8 @@ uintptr_t  _os_random_weak(uintptr_t extra_seed);
 static inline uintptr_t _mi_random_shuffle(uintptr_t x);
 
 // init.c
-extern mi_stats_t       _mi_stats_main;
-extern const mi_page_t  _mi_page_empty;
+extern mi_decl_cache_align mi_stats_t       _mi_stats_main;
+extern mi_decl_cache_align const mi_page_t  _mi_page_empty;
 bool       _mi_is_main_thread(void);
 bool       _mi_preloading();  // true while the C runtime is not ready