diff --git a/block/bio.c b/block/bio.c
index 3a49c1b15eae..bfab07a9a4e0 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -64,7 +64,7 @@ struct bio_slab {
 	struct kmem_cache *slab;
 	unsigned int slab_ref;
 	unsigned int slab_size;
-	char name[8];
+	char name[12];
 };
 static DEFINE_MUTEX(bio_slab_lock);
 static struct bio_slab *bio_slabs;