diff --git a/src/main/services/FileStorage.ts b/src/main/services/FileStorage.ts
index b226fb4e..b24e930a 100644
--- a/src/main/services/FileStorage.ts
+++ b/src/main/services/FileStorage.ts
@@ -254,7 +254,8 @@ class FileStorage {
     const filePath = path.join(this.storageDir, id)
     const data = await fs.promises.readFile(filePath)
     const base64 = data.toString('base64')
-    const mime = `image/${path.extname(filePath).slice(1)}`
+    const ext = path.extname(filePath).slice(1) == 'jpg' ? 'jpeg' : path.extname(filePath).slice(1)
+    const mime = `image/${ext}`
     return {
       mime,
       base64,