diff --git a/samples/negative/development/invalid_openservice2json b/samples/negative/development/invalid_openservice2.json
similarity index 100%
rename from samples/negative/development/invalid_openservice2json
rename to samples/negative/development/invalid_openservice2.json
diff --git a/samples/negative/development/invalid_openservice3.json b/samples/negative/development/invalid_openservice3.json
new file mode 100644
index 0000000..9e76655
--- /dev/null
+++ b/samples/negative/development/invalid_openservice3.json
@@ -0,0 +1,36 @@
+{
+  "Version": "development",
+  "ReporterInfo": {
+    "ReporterOrg": "ExampleOrg",
+    "ReporterOrgDomain": "example.com",
+    "ReporterOrgEmail": "reports@example.com",
+    "ReporterContactEmail": "contact@example.com",
+    "ReporterContactName": "Mr. Example",
+    "ReporterContactPhone": "+ 01 000 1234567"
+  },
+  "Disclosure": true,
+  "Report": {
+    "ReportType": "OpenService",
+    "ReportClass": "Vulnerability",
+    "FirstSeen": "2020-03-15T15:17:10Z",
+    "Date": "2020-07-24T14:17:10Z",
+    "Service": {
+      "Version": 2
+    },
+    "SourceIp": "192.0.2.55",
+    "SourcePort": 54321,
+    "Protocol": "thisisnoprotocol",
+    "Samples": [
+      {
+        "ContentType": "text/plain",
+        "Base64Encoded": false,
+        "Description": "Log line",
+        "Payload": "EXAMPLE Nmap done: 1 IP address (1 host up) scanned in 5.58 seconds EXAMPLE"
+      }
+    ],
+    "Custom": {
+      "whatever": "examplevalue",
+      "whatever2": "examplevalue2"
+    }
+  }
+}
diff --git a/schemas/development/xarf_shared.schema.json b/schemas/development/xarf_shared.schema.json
index 5d7437b..a65891f 100644
--- a/schemas/development/xarf_shared.schema.json
+++ b/schemas/development/xarf_shared.schema.json
@@ -429,11 +429,14 @@
     "description": "Describes a service running on the network",
     "properties": {
       "Name": {
+        "description": "The name of the service. E.g. redis",
         "type": "string"
       },
       "Version": {
+        "description": "Version of the service. E.g. 1.2.0 or 5.4",
         "type": "string"
       }
-    }
+    },
+    "required": ["Name"]
   }
 }