diff --git a/FHEM/36_ShellyMonitor.pm b/FHEM/36_ShellyMonitor.pm
index eb0d43742..27752f214 100644
--- a/FHEM/36_ShellyMonitor.pm
+++ b/FHEM/36_ShellyMonitor.pm
@@ -220,6 +220,7 @@ my %DEVID_MODEL = (
 my %DEVID_PREFIX = (
     "SHPLG-S"  => "shelly_plug_s",
     "SHSW-PM"  => "shelly_1pm",
+    "SHSW-L"   => "shelly_1l",
     "SHSW-1"   => "shelly_1",
     "SHSW-21"  => "shelly_2",
     "SHSW-25"  => "shelly_25",