diff --git a/src/handlers.ts b/src/handlers.ts
index 0b20b6c..2533fba 100644
--- a/src/handlers.ts
+++ b/src/handlers.ts
@@ -570,7 +570,7 @@ export async function getSiteDataHandler(
     // This is to ensure that the actor exists - e.g. for a brand new a site
     await getUserData(apCtx, handle);
 
-    await updateSiteActor(apCtx, getSiteSettings, host);
+    await updateSiteActor(apCtx, getSiteSettings);
 
     return new Response(JSON.stringify(site), {
         status: 200,
@@ -595,7 +595,7 @@ export async function siteChangedWebhook(
             logger,
         });
 
-        await updateSiteActor(apCtx, getSiteSettings, host);
+        await updateSiteActor(apCtx, getSiteSettings);
     } catch (err) {
         ctx.get('logger').error('Site changed webhook failed: {error}', {
             error: err,
diff --git a/src/helpers/activitypub/actor.ts b/src/helpers/activitypub/actor.ts
index 5d014d3..f103a27 100644
--- a/src/helpers/activitypub/actor.ts
+++ b/src/helpers/activitypub/actor.ts
@@ -81,9 +81,8 @@ export async function updateSiteActor(
     getSiteSettings: (host: string) => Promise<{
         site: { icon: string; title: string; description: string };
     }>,
-    host: string,
 ) {
-    const settings = await getSiteSettings(host);
+    const settings = await getSiteSettings(apCtx.host);
     const handle = ACTOR_DEFAULT_HANDLE;
 
     const current = await getUserData(apCtx, handle);
diff --git a/src/helpers/activitypub/actor.unit.test.ts b/src/helpers/activitypub/actor.unit.test.ts
index 1cb4297..b3fc110 100644
--- a/src/helpers/activitypub/actor.unit.test.ts
+++ b/src/helpers/activitypub/actor.unit.test.ts
@@ -271,6 +271,7 @@ describe('updateSiteActor', () => {
                 .fn()
                 .mockReturnValue(new URL('https://example.com/followers')),
             sendActivity: vi.fn(),
+            host: 'example.com',
         } as unknown as RequestContext<ContextData>;
     }
 
@@ -287,15 +288,17 @@ describe('updateSiteActor', () => {
                 following: 'https://example.com/following',
                 followers: 'https://example.com/followers',
                 liked: 'https://example.com/liked',
-                url: 'https://example.com',
+                url: 'https://example.com/',
             }),
             set: vi.fn(),
-        } as unknown as KvStore;
+            delete: vi.fn(),
+        };
 
         const globaldb = {
             get: vi.fn().mockResolvedValue(null),
             set: vi.fn(),
-        } as unknown as KvStore;
+            delete: vi.fn(),
+        };
 
         const getSiteSettings = vi.fn().mockResolvedValue({
             site: {
@@ -314,6 +317,50 @@ describe('updateSiteActor', () => {
         expect(result).toBe(false);
     });
 
+    it('should update the site actor if one does not exist', async () => {
+        const db = {
+            get: vi.fn().mockResolvedValue(undefined),
+            set: vi.fn(),
+            delete: vi.fn(),
+        };
+
+        const globaldb = {
+            get: vi.fn().mockResolvedValue(null),
+            set: vi.fn(),
+            delete: vi.fn(),
+        };
+
+        const getSiteSettings = vi.fn().mockResolvedValue({
+            site: {
+                description: 'New Site Description',
+                title: 'New Site Title',
+                icon: 'https://example.com/icon.png',
+            },
+        });
+
+        const host = 'example.com';
+
+        const apCtx = mockApContext(db, globaldb);
+
+        const result = await updateSiteActor(apCtx, getSiteSettings, host);
+
+        expect(result).toBe(true);
+
+        expect(db.set.mock.lastCall?.[1]).toStrictEqual({
+            id: 'https://example.com/user/1',
+            name: 'New Site Title',
+            summary: 'New Site Description',
+            preferredUsername: 'index',
+            icon: 'https://example.com/icon.png',
+            inbox: 'https://example.com/inbox',
+            outbox: 'https://example.com/outbox',
+            following: 'https://example.com/following',
+            followers: 'https://example.com/followers',
+            liked: 'https://example.com/liked',
+            url: 'https://example.com/',
+        });
+    });
+
     it('should update the site actor if the site settings have changed', async () => {
         const db = {
             get: vi.fn().mockResolvedValue({
@@ -327,15 +374,17 @@ describe('updateSiteActor', () => {
                 following: 'https://example.com/following',
                 followers: 'https://example.com/followers',
                 liked: 'https://example.com/liked',
-                url: 'https://example.com',
+                url: 'https://example.com/',
             }),
             set: vi.fn(),
-        } as unknown as KvStore;
+            delete: vi.fn(),
+        };
 
         const globaldb = {
             get: vi.fn().mockResolvedValue(null),
             set: vi.fn(),
-        } as unknown as KvStore;
+            delete: vi.fn(),
+        };
 
         const getSiteSettings = vi.fn().mockResolvedValue({
             site: {
@@ -352,5 +401,19 @@ describe('updateSiteActor', () => {
         const result = await updateSiteActor(apCtx, getSiteSettings, host);
 
         expect(result).toBe(true);
+
+        expect(db.set.mock.calls[0][1]).toStrictEqual({
+            id: 'https://example.com/user/1',
+            name: 'New Site Title',
+            summary: 'New Site Description',
+            preferredUsername: 'index',
+            icon: 'https://example.com/icon.png',
+            inbox: 'https://example.com/inbox',
+            outbox: 'https://example.com/outbox',
+            following: 'https://example.com/following',
+            followers: 'https://example.com/followers',
+            liked: 'https://example.com/liked',
+            url: 'https://example.com/',
+        });
     });
 });