diff --git a/packages/server/src/db/migrate.ts b/packages/server/src/db/migrate.ts
index 4dafb1e6..e1c737cc 100644
--- a/packages/server/src/db/migrate.ts
+++ b/packages/server/src/db/migrate.ts
@@ -157,6 +157,14 @@ export function runMigrations(db: Database.Database): void {
         { name: 'show_activity', type: 'INTEGER NOT NULL DEFAULT 1' },
       ]
     },
+    {
+      name: 'attachments',
+      columns: [
+        { name: 'width', type: 'INTEGER' },
+        { name: 'height', type: 'INTEGER' },
+        { name: 'duration', type: 'REAL' },
+      ]
+    },
     // gif_api_key is handled by migrateRenameGifApiKey() — do NOT add it here
     // or it will race with the tenor_api_key → gif_api_key rename migration
   ];
diff --git a/packages/server/src/db/schema.ts b/packages/server/src/db/schema.ts
index 946c0344..8721d19c 100644
--- a/packages/server/src/db/schema.ts
+++ b/packages/server/src/db/schema.ts
@@ -1,4 +1,4 @@
-import { sqliteTable, text, integer, primaryKey, foreignKey } from 'drizzle-orm/sqlite-core';
+import { sqliteTable, text, integer, primaryKey, foreignKey, real } from 'drizzle-orm/sqlite-core';
 
 export const users = sqliteTable('users', {
   id: text('id').primaryKey(),
@@ -90,6 +90,9 @@ export const attachments = sqliteTable('attachments', {
   mimetype: text('mimetype').notNull(),
   size: integer('size').notNull(),
   thumbnailFilename: text('thumbnail_filename'),
+  width: integer('width'),
+  height: integer('height'),
+  duration: real('duration'),
   createdAt: integer('created_at').notNull(),
 });
 
diff --git a/packages/shared/src/types.ts b/packages/shared/src/types.ts
index 229969d3..e0eca8f8 100644
--- a/packages/shared/src/types.ts
+++ b/packages/shared/src/types.ts
@@ -217,6 +217,9 @@ export interface Attachment {
   mimetype: string;
   size: number;
   thumbnailFilename?: string | null;
+  width?: number | null;
+  height?: number | null;
+  duration?: number | null;
   createdAt: number;
 }