diff --git a/tools/rrcheck.pl b/tools/rrcheck.pl
index 5e5a983..279bca8 100644
--- a/tools/rrcheck.pl
+++ b/tools/rrcheck.pl
@@ -1,4 +1,4 @@
-#! /bin/perl
+#!/usr/bin/env perl
 ##
 ## Read BGPd logfile and lookup RR's whois database.
 ##