diff --git a/luci-app-omr-bypass/root/etc/init.d/omr-bypass b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
index dc1be3e78..1e29e781d 100755
--- a/luci-app-omr-bypass/root/etc/init.d/omr-bypass
+++ b/luci-app-omr-bypass/root/etc/init.d/omr-bypass
@@ -5,6 +5,8 @@ START=99
 STOP=10
 USE_PROCD=1
 
+. /usr/lib/unbound/iptools.sh
+
 _bypass_ip() {
 	local ip="$1"
 	valid_ip4=$( valid_subnet4 $ip)