diff --git a/product/ERP5/Document/Image.py b/product/ERP5/Document/Image.py
index d7e96b0141528dea8563cd1619bc59f72963e152..46e2c647d36f929a0cd91f84696c9155eeed05d3 100644
--- a/product/ERP5/Document/Image.py
+++ b/product/ERP5/Document/Image.py
@@ -269,7 +269,7 @@ class Image(TextConvertableMixin, File, OFSImage):
         data = aq_base(data)
         self.setConversion(data, mime=mime_type, format=format)
         return mime_type, data
-    if not (format and kw):
+    if not (format or kw):
       # User asked for original content
       return self.getContentType(), self.getData()
     image_size = self.getSizeFromImageDisplay(kw.get('display'))