diff --git a/proto/deviceInfo/v1.proto b/proto/deviceInfo/v1.proto
index 900110b..48a902a 100644
--- a/proto/deviceInfo/v1.proto
+++ b/proto/deviceInfo/v1.proto
@@ -21,6 +21,11 @@ message DeviceInfo_1 {
     selfHostedServer = 4;
   }
 
+  message SelfHostedServerDetails {
+    string baseUrl = 1 [(required) = true];
+  }
+
   string name = 5;
   DeviceType deviceType = 6;
+  optional SelfHostedServerDetails selfHostedServerDetails = 7;
 }
diff --git a/schema/deviceInfo/v1.json b/schema/deviceInfo/v1.json
index c591ba6..3ce1d0d 100644
--- a/schema/deviceInfo/v1.json
+++ b/schema/deviceInfo/v1.json
@@ -23,6 +23,17 @@
         "UNRECOGNIZED"
       ],
       "description": "Type of device"
+    },
+    "selfHostedServerDetails": {
+      "type": "object",
+      "properties": {
+        "baseUrl": {
+          "description": "base URL for the server",
+          "type": "string",
+          "minLength": 1
+        }
+      },
+      "required": ["baseUrl"]
     }
   },
   "required": ["schemaName", "name", "deviceType"],
diff --git a/test/fixtures/good-docs-completed.js b/test/fixtures/good-docs-completed.js
index f9d8c99..7f0c4d7 100644
--- a/test/fixtures/good-docs-completed.js
+++ b/test/fixtures/good-docs-completed.js
@@ -212,6 +212,24 @@ export const goodDocsCompleted = [
       deviceType: 'UNRECOGNIZED',
     },
   },
+  {
+    doc: {
+      docId: cachedValues.docId,
+      versionId: cachedValues.versionId,
+      originalVersionId: cachedValues.originalVersionId,
+      schemaName: 'deviceInfo',
+      createdAt: cachedValues.createdAt,
+      updatedAt: cachedValues.updatedAt,
+      links: [],
+      name: 'my server',
+      deviceType: 'selfHostedServer',
+      deleted: false,
+      selfHostedServerDetails: {
+        baseUrl: 'https://mapeo.example/foo',
+      },
+    },
+    expected: {},
+  },
   {
     doc: {
       docId: cachedValues.docId,