diff --git a/packages/backend/src/routes/server-info.ts b/packages/backend/src/routes/server-info.ts
index f889eca..fec5524 100644
--- a/packages/backend/src/routes/server-info.ts
+++ b/packages/backend/src/routes/server-info.ts
@@ -23,7 +23,7 @@ export default async function ServerInfo(fastify: FastifyInstance) {
         success: true,
         name: serverName?.value ?? null,
         description: serverDescription?.value ?? null,
-        icon: serverIcon?.value ?? `${config.server.origin}/assets/lynqchat.svg`,
+        icon: serverIcon?.value ?? null,
         isInitialized: configCount > 0,
         isFirstAdminExists: userCount > 0,
         userCount,
diff --git a/packages/backend/src/routes/setup/initialization.ts b/packages/backend/src/routes/setup/initialization.ts
index ad3803a..c859b26 100644
--- a/packages/backend/src/routes/setup/initialization.ts
+++ b/packages/backend/src/routes/setup/initialization.ts
@@ -49,7 +49,6 @@ export default function SetupInitialization(fastify: FastifyInstance) {
     try {
       const entries = Object.entries(result.data).filter(([key]) => key !== "force");
 
-      entries.push(["icon", `${config.server.origin}/assets/lynqchat.svg`]);
       const vapid = webpush.generateVAPIDKeys();
       entries.push(["VAPID_PUBLIC", vapid.publicKey]);
       entries.push(["VAPID_PRIVATE", vapid.privateKey]);
diff --git a/packages/frontend/src/Layout.vue b/packages/frontend/src/Layout.vue
index 2dc09b4..60a7c8b 100755
--- a/packages/frontend/src/Layout.vue
+++ b/packages/frontend/src/Layout.vue
@@ -18,7 +18,7 @@
           : ""'
         title="ホーム"
       >
-        <img :src='"icon" in serverInfo
+        <img :src='"icon" in serverInfo && serverInfo.icon
           ? serverInfo.icon
           : "/assets/lynqchat.svg"'
         />
diff --git a/packages/lynqchat-js/src/1.0.0-alpha.0/api/server-info.d.ts b/packages/lynqchat-js/src/1.0.0-alpha.0/api/server-info.d.ts
index 2a229b5..18c8d20 100644
--- a/packages/lynqchat-js/src/1.0.0-alpha.0/api/server-info.d.ts
+++ b/packages/lynqchat-js/src/1.0.0-alpha.0/api/server-info.d.ts
@@ -9,7 +9,7 @@ export default interface ServerInfo {
     response: (Success & {
       name: string | null;
       description: string | null;
-      icon: string;
+      icon: string | null;
       isInitialized: boolean;
       isFirstAdminExists: boolean;
       userCount: number;