diff --git a/usr.bin/top/machine.c b/usr.bin/top/machine.c
index 1c3d152c147..04a3741a93a 100644
--- a/usr.bin/top/machine.c
+++ b/usr.bin/top/machine.c
@@ -49,7 +49,6 @@
 
 /* Swap */
 #include <stdlib.h>
-#include <sys/conf.h>
 
 #include <unistd.h>
 #include <osreldate.h> /* for changes in kernel structures */