diff --git a/mcastmngr/files/linux/lib/mcast/linux.sh b/mcastmngr/files/linux/lib/mcast/linux.sh
index e3722f562..9af39da8d 100755
--- a/mcastmngr/files/linux/lib/mcast/linux.sh
+++ b/mcastmngr/files/linux/lib/mcast/linux.sh
@@ -15,7 +15,7 @@ snooping_bridges=
 
 __device_is_bridge() {
 	local device="$2"
-	local devsec__="$(uci show network | grep name=.*$device | grep -v ifname | cut -d'.' -f2)"
+	local devsec__="$(uci show network | grep -F ".name='$device'" | cut -d'.' -f2)"
 	local sectype="$(uci -q get network.$devsec__)"
 	local devtype="$(uci -q get network.$devsec__.type)"
 	[ "$sectype" != "device" -o "$devtype" != "bridge" ] && return 1