diff --git a/usr.bin/top/machine.c b/usr.bin/top/machine.c
--- a/usr.bin/top/machine.c
+++ b/usr.bin/top/machine.c
@@ -895,7 +895,6 @@
 static int
 cmd_matches(struct kinfo_proc *proc, const char *term)
 {
-	extern int show_args;
 	char **args = NULL;
 
 	if (!term) {