diff --git a/usr.bin/expand/expand.c b/usr.bin/expand/expand.c
index e8d85b4b73d6..1d8908903c87 100644
--- a/usr.bin/expand/expand.c
+++ b/usr.bin/expand/expand.c
@@ -53,8 +53,8 @@ __FBSDID("$FreeBSD$");
 /*
  * expand - expand tabs to equivalent spaces
  */
-int	nstops;
-int	tabstops[100];
+static int	nstops;
+static int	tabstops[100];
 
 static void getstops(char *);
 static void usage(void);