diff --git a/src/soapbox/reducers/instance.ts b/src/soapbox/reducers/instance.ts
index f13b1ebaf..87a264399 100644
--- a/src/soapbox/reducers/instance.ts
+++ b/src/soapbox/reducers/instance.ts
@@ -64,19 +64,19 @@ const handleAuthFetch = (state: typeof initialState) => {
   };
 };
 
-const getHost = (instance: { uri: string }) => {
+const getHost = (instance: { uri: string | undefined, domain: string }) => {
   try {
-    return new URL(instance.uri).host;
+    return new URL(instance.uri ?? `https://${instance.domain}`).host;
   } catch {
     try {
-      return new URL(`https://${instance.uri}`).host;
+      return new URL(`https://${instance.uri ?? instance.domain}`).host;
     } catch {
       return null;
     }
   }
 };
 
-const persistInstance = (instance: { uri: string }) => {
+const persistInstance = (instance: { uri: string | undefined, domain: string }) => {
   const host = getHost(instance);
 
   if (host) {
diff --git a/src/soapbox/schemas/instance.ts b/src/soapbox/schemas/instance.ts
index c62c86370..5a6890d82 100644
--- a/src/soapbox/schemas/instance.ts
+++ b/src/soapbox/schemas/instance.ts
@@ -128,6 +128,7 @@ const naiveInstanceSchema = coerceObject({
   thumbnail: z.string().catch(''),
   title: z.string().catch(''),
   urls: urlsSchema,
+  uri: z.string().url().catch(''),
   usage: usageSchema,
   version: z.string().catch(''),
 });
@@ -192,6 +193,7 @@ const instanceSchema = z.preprocess((data: any) => {
       email: email,
     },
     description: short_description || description,
+    domain: instance.uri.split('://')[1],
     pleroma: {
       ...pleroma,
       metadata: {