diff --git a/usr.bin/find/main.c b/usr.bin/find/main.c
index d901623d47b4..4f7064b07c30 100644
--- a/usr.bin/find/main.c
+++ b/usr.bin/find/main.c
@@ -31,7 +31,7 @@
  */
 
 #ifndef lint
-char copyright[] =
+static const char copyright[] =
 "@(#) Copyright (c) 1990, 1993, 1994\n\
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */
diff --git a/usr.bin/lex/main.c b/usr.bin/lex/main.c
index f6adaa7c41c1..a037ce965903 100644
--- a/usr.bin/lex/main.c
+++ b/usr.bin/lex/main.c
@@ -27,7 +27,7 @@
  */
 
 #ifndef lint
-char copyright[] =
+static const char copyright[] =
 "@(#) Copyright (c) 1990 The Regents of the University of California.\n\
  All rights reserved.\n";
 #endif /* not lint */
diff --git a/usr.sbin/mount_portalfs/mount_portalfs.c b/usr.sbin/mount_portalfs/mount_portalfs.c
index 3c37b95657c1..f4f53138a248 100644
--- a/usr.sbin/mount_portalfs/mount_portalfs.c
+++ b/usr.sbin/mount_portalfs/mount_portalfs.c
@@ -31,7 +31,7 @@
  */
 
 #ifndef lint
-char copyright[] =
+static const char copyright[] =
 "@(#) Copyright (c) 1992, 1993, 1994\n\
 	The Regents of the University of California.  All rights reserved.\n";
 #endif /* not lint */