diff --git a/README.rst b/README.rst
index e129227..ec4734e 100644
--- a/README.rst
+++ b/README.rst
@@ -12,7 +12,7 @@ Supported traction
 
 **railworks-dsd** has been positively tested with the following vehicles.
 
-* Class 37 (West Highland Line South version)
+* Class 37 (Weardale and Teesdale and West Highland Line South versions)
 * Class 43 HST (ECMLS and Just Trains Scottish ECML versions)
 * Class 47 (all versions)
 * Class 66 (with Armstrong Powerhouse Sound Pack Pro)
diff --git a/dsd/machine.py b/dsd/machine.py
index adfbfee..a52b180 100644
--- a/dsd/machine.py
+++ b/dsd/machine.py
@@ -32,6 +32,8 @@
     'JustTrains.NL': models.Class43JT_47_DSDModel,  # TODO: make more specific with patterndict
     'JustTrains.Voyager': models.Class220_221DSDModel,
 
+    'RSderek.WearValleyRailway': models.GenericDSDModel,  #TODO: make more specific with patterndict
+
     'RSC.BrightonMainLine': models.GenericDSDModel,  # TODO: make more specific with patterndict
     'RSC.Class47Pack01': models.Class43JT_47_DSDModel,
     'RSC.Class66Pack02': models.Class66APDSDModel,