diff --git a/lib/libmemstat/memstat_uma.c b/lib/libmemstat/memstat_uma.c
index 58a08cfddbc..35f6dad45a4 100644
--- a/lib/libmemstat/memstat_uma.c
+++ b/lib/libmemstat/memstat_uma.c
@@ -30,7 +30,6 @@
 #include <sys/cpuset.h>
 #include <sys/sysctl.h>
 
-#define	LIBMEMSTAT	/* Cause vm_page.h not to include opt_vmpage.h */
 #include <vm/vm.h>
 #include <vm/vm_page.h>