diff --git a/playground/matplus/thies-marwitz/create-part-information-schema.json b/playground/matplus/thies-marwitz/create-part-information-schema.json
index 111a1689..142aaa0f 100644
--- a/playground/matplus/thies-marwitz/create-part-information-schema.json
+++ b/playground/matplus/thies-marwitz/create-part-information-schema.json
@@ -14,7 +14,7 @@
     },
     "serialNumber": {
       "type": "string",
-      "title": "S",
+      "title": "Serial ",
       "default": "01"
     }
   }