diff --git a/ofm_config_full.json b/ofm_config_full.json
index 60b85a66..2be08676 100644
--- a/ofm_config_full.json
+++ b/ofm_config_full.json
@@ -15,7 +15,8 @@
             "kwargs": {
                 "scans_folder": "/var/openflexure/scans/"
             }
-        }
+        },
+        "/stage_measure/":"openflexure_microscope_server.things.stage_measure:RangeofMotionThing"
     },
     "settings_folder": "/var/openflexure/settings/",
     "log_folder": "/var/openflexure/logs/"