diff --git a/backend/src/db/index.js b/backend/src/db/index.js
index 5621b55..2e5b66d 100644
--- a/backend/src/db/index.js
+++ b/backend/src/db/index.js
@@ -1012,6 +1012,26 @@ db.exec(`
       VALUES ('logo-app', 'app-logo.svg', 'Logo principal de la plateforme')
     `).run();
   }
+
+  // Génère le fichier app-logo.svg dans le dossier icons s'il est absent
+  {
+    const dataDir  = process.env.DATA_DIR
+      ? path.resolve(process.env.DATA_DIR)
+      : path.resolve(__dirname, '../../data');
+    const logoPath = path.join(dataDir, 'icons', 'app-logo.svg');
+
+    if (!fs.existsSync(logoPath)) {
+      fs.mkdirSync(path.dirname(logoPath), { recursive: true });
+      fs.writeFileSync(logoPath, `<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100">
+  <rect width="100" height="100" rx="22" fill="#1e3a6e"/>
+  <rect x="14" y="62" width="20" height="24" rx="3" fill="#4a7fc1" opacity="0.85"/>
+  <rect x="40" y="46" width="20" height="40" rx="3" fill="#6a9fd8" opacity="0.9"/>
+  <rect x="66" y="30" width="20" height="56" rx="3" fill="#8ab8e8"/>
+  <polygon points="76,8 90,28 82,28 82,36 70,36 70,28 62,28" fill="#22c55e"/>
+</svg>`, 'utf8');
+      console.log('[DB] app-logo.svg généré dans', path.dirname(logoPath));
+    }
+  }
 }
 
 // ── Migration : compte_id sur investissements ────────────────────────────────