diff --git a/apps/manacore/apps/web/src/lib/modules/contacts/stores/contacts.svelte.ts b/apps/manacore/apps/web/src/lib/modules/contacts/stores/contacts.svelte.ts
index ab17656b9..a598bd115 100644
--- a/apps/manacore/apps/web/src/lib/modules/contacts/stores/contacts.svelte.ts
+++ b/apps/manacore/apps/web/src/lib/modules/contacts/stores/contacts.svelte.ts
@@ -115,9 +115,10 @@ export const contactsStore = {
 	/**
 	 * Ensure the self-contact exists and is synced with the user's profile.
 	 * Creates the contact if missing, updates it if profile data changed.
+	 * Works without profile data (guest mode) — creates a minimal self-contact.
 	 */
-	async ensureSelfContact(profile: UserProfile): Promise<void> {
-		const nameParts = (profile.name || '').split(' ');
+	async ensureSelfContact(profile?: UserProfile | null): Promise<void> {
+		const nameParts = (profile?.name || '').split(' ');
 		const firstName = nameParts[0] || undefined;
 		const lastName = nameParts.slice(1).join(' ') || undefined;
 
@@ -126,10 +127,10 @@ export const contactsStore = {
 		if (!existing) {
 			const self: LocalContact = {
 				id: SELF_CONTACT_ID,
-				firstName,
+				firstName: firstName || 'Ich',
 				lastName,
-				email: profile.email || undefined,
-				photoUrl: profile.image || undefined,
+				email: profile?.email || undefined,
+				photoUrl: profile?.image || undefined,
 				isFavorite: true,
 				isArchived: false,
 				createdAt: new Date().toISOString(),
@@ -139,7 +140,9 @@ export const contactsStore = {
 			return;
 		}
 
-		// Sync profile fields if they changed
+		// Only sync if we have profile data
+		if (!profile) return;
+
 		const needsUpdate =
 			existing.firstName !== firstName ||
 			existing.lastName !== lastName ||
diff --git a/apps/manacore/apps/web/src/routes/(app)/contacts/+layout.svelte b/apps/manacore/apps/web/src/routes/(app)/contacts/+layout.svelte
index 4094686ce..f413b0df5 100644
--- a/apps/manacore/apps/web/src/routes/(app)/contacts/+layout.svelte
+++ b/apps/manacore/apps/web/src/routes/(app)/contacts/+layout.svelte
@@ -20,13 +20,15 @@
 
 	// Ensure self-contact exists and stays synced with profile
 	onMount(async () => {
-		if (!authStore.isAuthenticated) return;
-		try {
-			const profile = await profileService.getProfile();
-			await contactsStore.ensureSelfContact(profile);
-		} catch {
-			// Profile fetch may fail for guest users — that's OK
+		let profile = null;
+		if (authStore.isAuthenticated) {
+			try {
+				profile = await profileService.getProfile();
+			} catch {
+				// Profile fetch may fail — continue with guest self-contact
+			}
 		}
+		await contactsStore.ensureSelfContact(profile);
 	});
 </script>