diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index 7e7df14360c1..79f45255f667 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -29,17 +29,20 @@
 #include "opt_bus.h"
 
 #include <sys/param.h>
-#include <sys/queue.h>
-#include <sys/malloc.h>
-#include <sys/kernel.h>
-#include <sys/module.h>
-#include <sys/kobj.h>
 #include <sys/bus_private.h>
-#include <sys/sysctl.h>
-#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/kobj.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/queue.h>
 #include <machine/bus.h>
 #include <sys/rman.h>
-#include <machine/stdarg.h>	/* for device_printf() */
+#include <sys/sysctl.h>
+#include <sys/systm.h>
+
+#include <machine/stdarg.h>
+
+#include <vm/uma.h>
 
 static MALLOC_DEFINE(M_BUS, "bus", "Bus data structures");