diff --git a/sys/sys/malloc.h b/sys/sys/malloc.h
index 3bf564a5fd1..57c358623c6 100644
--- a/sys/sys/malloc.h
+++ b/sys/sys/malloc.h
@@ -52,7 +52,7 @@
 #define	M_NOWAIT	0x0001		/* do not block */
 #define	M_USE_RESERVE	0x0002		/* can alloc out of reserve memory */
 #define	M_ZERO		0x0004		/* bzero the allocation */
-#define M_NOVM		0x0008		/* Don't ask the VM for pages */
+#define	M_NOVM		0x0008		/* Don't ask the VM for pages */
 
 #define	M_MAGIC		877983977	/* time when first defined :-) */