diff --git a/scripts/makedbh b/scripts/makedbh
index 01e4fa5..d6299c6 100755
--- a/scripts/makedbh
+++ b/scripts/makedbh
@@ -1,4 +1,4 @@
-#!/bin/csh -f
+#!/usr/bin/env tcsh
 #
 # makes the "database.h" (1st argument, $1) file from "database.h.in"
 # (2nd argument, $2), setting various mask operation definitions