diff --git a/mm/slab.c b/mm/slab.c
index c9e706d..ae6cca0 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -600,7 +600,7 @@
 		csizep++;
 
 	/*
-	 * Really subtile: The last entry with cs->cs_size==ULONG_MAX
+	 * Really subtle: The last entry with cs->cs_size==ULONG_MAX
 	 * has cs_{dma,}cachep==NULL. Thus no special case
 	 * for large kmalloc calls required.
 	 */