diff --git a/attachment_preview/__openerp__.py b/attachment_preview/__openerp__.py
index b733a689..34f2c590 100644
--- a/attachment_preview/__openerp__.py
+++ b/attachment_preview/__openerp__.py
@@ -21,7 +21,7 @@
 {
     "name": "Preview attachments",
     "version": "1.1",
-    "author": "Therp BV",
+    "author": "Therp BV,Odoo Community Association (OCA)",
     "license": "AGPL-3",
     "complexity": "normal",
     'summary': 'Preview attachments supported by Viewer.js',
diff --git a/attachment_preview/model/ir_attachment.py b/attachment_preview/model/ir_attachment.py
index 908247ff..b00d3474 100644
--- a/attachment_preview/model/ir_attachment.py
+++ b/attachment_preview/model/ir_attachment.py
@@ -49,8 +49,8 @@ class IrAttachment(Model):
                 try:
                     import magic
                     ms = magic.open(
-                        hasattr(magic, 'MAGIC_MIME_TYPE')
-                        and magic.MAGIC_MIME_TYPE or magic.MAGIC_MIME)
+                        hasattr(magic, 'MAGIC_MIME_TYPE') and
+                        magic.MAGIC_MIME_TYPE or magic.MAGIC_MIME)
                     ms.load()
                     mimetype = ms.buffer(
                         base64.b64decode(this[binary_field]))