diff --git a/config.mk.sh b/config.mk.sh
index 573bb45..2045043 100644
--- a/config.mk.sh
+++ b/config.mk.sh
@@ -5,3 +5,5 @@ LOGDIR=${LOGDIR:-"/tmp/userrc"}
 BINDIR=${BINDIR:-"${PREFIX}/bin"}
 CONFDIR=${CONFDIR:-"${PREFIX}/etc"}
 CONFIG=${CONFIG:-"${CONFDIR}/userrc.conf"}
+
+BASH=${BASH:="/usr/bin/bash"}
diff --git a/make.sh b/make.sh
index 3e94f4c..1614288 100755
--- a/make.sh
+++ b/make.sh
@@ -9,6 +9,7 @@ set_vars() {
 		sed -r \
 			-e "s%@CONFIG@%${CONFIG}%" \
 			-e "s%@LOGDIR@%${LOGDIR}%" \
+			-e "s%@BASH@%${BASH}%" \
 			< "$i".in > "$i"
 	done
 }
diff --git a/userrc.in b/userrc.in
index bdfcd2f..d2a33ec 100644
--- a/userrc.in
+++ b/userrc.in
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!@BASH@
 
 msg() { printf '%s\n' "$*"; }
 err() { printf '%s\n' "$*" >&2; }