diff --git a/media/avatars/default.jpg b/media/avatars/default.jpg
new file mode 100644
index 0000000000..597a3f1b15
Binary files /dev/null and b/media/avatars/default.jpg differ
diff --git a/media/css/seahub.css b/media/css/seahub.css
index c316b47eb3..9e20e06ec8 100644
--- a/media/css/seahub.css
+++ b/media/css/seahub.css
@@ -305,7 +305,7 @@ p.path, p.access-notice { margin: 12px 0 6px 0; }
 }
 .home-profile .avatar {
     float:left;
-    margin-right:20px;
+    margin-right:15px;
 }
 .mygroup {
     display:inline-block;
diff --git a/settings.py b/settings.py
index d42ef92664..bdaeabb36d 100644
--- a/settings.py
+++ b/settings.py
@@ -193,7 +193,7 @@ else:
 #avatar
 AVATAR_STORAGE_DIR = 'avatars'
 AVATAR_GRAVATAR_BACKUP = False
-AVATAR_DEFAULT_URL = '/avatars/default.png'
+AVATAR_DEFAULT_URL = '/avatars/default.jpg'
 AUTO_GENERATE_AVATAR_SIZES = (80, 16)
 AVATAR_MAX_AVATARS_PER_USER = 1
 AVATAR_CACHE_TIMEOUT = 0