diff --git a/include/sys/kmem.h b/include/sys/kmem.h
index d3972f1ca7..72f70c2820 100644
--- a/include/sys/kmem.h
+++ b/include/sys/kmem.h
@@ -334,7 +334,7 @@ extern struct rw_semaphore spl_kmem_cache_sem;
 
 #define SPL_KMEM_CACHE_DELAY		15	/* Minimum slab release age */
 #define SPL_KMEM_CACHE_REAP		0	/* Default reap everything */
-#define SPL_KMEM_CACHE_OBJ_PER_SLAB	32	/* Target objects per slab */
+#define SPL_KMEM_CACHE_OBJ_PER_SLAB	16	/* Target objects per slab */
 #define SPL_KMEM_CACHE_OBJ_PER_SLAB_MIN	8	/* Minimum objects per slab */
 #define SPL_KMEM_CACHE_ALIGN		8	/* Default object alignment */