diff --git a/mm/slab.c b/mm/slab.c
index b3eca034d0b4..23fc4b00d0ce 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -537,7 +537,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 	 * on it. For the latter case, the memory allocated for a
 	 * slab is used for:
 	 *
-	 * - One unsigned int for each object
+	 * - One freelist_idx_t for each object
 	 * - Padding to respect alignment of @align
 	 * - @buffer_size bytes for each object
 	 *