diff --git a/src/protocol/routes/thing-update.ts b/src/protocol/routes/thing-update.ts
index fc83537e..9ef23322 100644
--- a/src/protocol/routes/thing-update.ts
+++ b/src/protocol/routes/thing-update.ts
@@ -55,7 +55,7 @@ export class SCThingUpdateRoute extends SCAbstractRoute {
     ];
     this.method = SCRouteHttpVerbs.PUT;
     this.obligatoryParameters = {
-      TYPE: 'SCThingTypes',
+      TYPE: 'SCThingType',
       UID: 'SCUuid',
     };
     this.requestBodyName = 'SCThingUpdateRequest';