diff --git a/usr.bin/usbhidctl/usbhid.c b/usr.bin/usbhidctl/usbhid.c
index bf3e348d526..2a28e3e40de 100644
--- a/usr.bin/usbhidctl/usbhid.c
+++ b/usr.bin/usbhidctl/usbhid.c
@@ -42,7 +42,7 @@
 #include <usbhid.h>
 #include <dev/usb/usbhid.h>
 
-struct variable {
+static struct variable {
 	char *name;
 	int instance;
 	int val;
@@ -50,11 +50,11 @@ struct variable {
 	struct variable *next;
 } *vars;
 
-int verbose = 0;
-int noname = 0;
-int hexdump = 0;
-int wflag = 0;
-int zflag = 0;
+static int verbose = 0;
+static int noname = 0;
+static int hexdump = 0;
+static int wflag = 0;
+static int zflag = 0;
 
 static void usage(void);
 static void dumpitem(const char *label, struct hid_item *h);