diff --git a/include/mimalloc-types.h b/include/mimalloc-types.h
index 772e8839..068513ba 100644
--- a/include/mimalloc-types.h
+++ b/include/mimalloc-types.h
@@ -141,7 +141,7 @@ typedef int32_t  mi_ssize_t;
 #define MI_SEGMENT_ALIGN                  MI_SEGMENT_SIZE
 #define MI_SEGMENT_MASK                   (MI_SEGMENT_SIZE - 1)
 #define MI_SEGMENT_SLICE_SIZE             (MI_ZU(1)<< MI_SEGMENT_SLICE_SHIFT)
-#define MI_SLICES_PER_SEGMENT             (MI_SEGMENT_SIZE / MI_SEGMENT_SLICE_SIZE) // 128
+#define MI_SLICES_PER_SEGMENT             (MI_SEGMENT_SIZE / MI_SEGMENT_SLICE_SIZE) // 1024
 
 #define MI_SMALL_PAGE_SIZE                (MI_ZU(1)<<MI_SMALL_PAGE_SHIFT)
 #define MI_MEDIUM_PAGE_SIZE               (MI_ZU(1)<<MI_MEDIUM_PAGE_SHIFT)