diff --git a/mm/slub.c b/mm/slub.c
index b1635f929b87..bb278c886927 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2578,7 +2578,7 @@ void __init kmem_cache_init(void)
 	BUILD_BUG_ON(KMALLOC_MIN_SIZE > 256 ||
 		(KMALLOC_MIN_SIZE & (KMALLOC_MIN_SIZE - 1)));
 
-	for (i = 8; i < KMALLOC_MIN_SIZE;i++)
+	for (i = 8; i < KMALLOC_MIN_SIZE; i += 8)
 		size_index[(i - 1) / 8] = KMALLOC_SHIFT_LOW;
 
 	slab_state = UP;