diff --git a/product/ERP5/bootstrap/erp5_core/ToolTemplateItem/mimetypes_registry.xml b/product/ERP5/bootstrap/erp5_core/ToolTemplateItem/mimetypes_registry.xml
index 6acce8424a14d2688ea3c5f289f9f1c691d5c48c..076472a52c07cb9f9e8934afcbcb092eeb539eed 100644
--- a/product/ERP5/bootstrap/erp5_core/ToolTemplateItem/mimetypes_registry.xml
+++ b/product/ERP5/bootstrap/erp5_core/ToolTemplateItem/mimetypes_registry.xml
@@ -11011,9 +11011,9 @@
             <key> <string>extensions</string> </key>
             <value>
               <tuple>
+                <string>bin</string>
                 <string>obj</string>
                 <string>so</string>
-                <string>bin</string>
                 <string>a</string>
               </tuple>
             </value>
@@ -17635,9 +17635,9 @@
             <key> <string>extensions</string> </key>
             <value>
               <tuple>
+                <string>jpg</string>
                 <string>pjpg</string>
                 <string>jpeg</string>
-                <string>jpg</string>
                 <string>jpe</string>
               </tuple>
             </value>
diff --git a/product/ERP5/tests/testBusinessTemplateTwoFileExport.py b/product/ERP5/tests/testBusinessTemplateTwoFileExport.py
index 1cf1707425f3dd3eef06129939daf991f80fcb75..f8f3db75728f50e1913472e449645bae41d5e5af 100644
--- a/product/ERP5/tests/testBusinessTemplateTwoFileExport.py
+++ b/product/ERP5/tests/testBusinessTemplateTwoFileExport.py
@@ -286,7 +286,7 @@ AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
   def test_twoFileImportExportForImageIdentifyingTypeByContentType(self):
     """
       Test Business Template Import And Export With Image In Image Module
-      where extension (.pjpg) is found by content_type
+      where extension (.jpg) is found by content_type
     """
     image_data = """MalformedBase64HereiVBORw0KGgoAAAANSUhEUgAAAAUA
 AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
@@ -297,7 +297,7 @@ AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
       data = image_data,
       content_type = "image/jpeg",
       portal_type = "Image",
-    ), '.pjpg')
+    ), '.jpg')
 
   def test_twoFileImportExportForImageNotIdentifyingType(self):
     """
@@ -356,14 +356,14 @@ AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO
   def test_twoFileImportExportForFileIdentifyingTypeByContentTypeObj(self):
     """
       Test Business Template Import And Export With File
-      where extension (.obj) is identified by the content_type
+      where extension (.bin) is identified by the content_type
     """
     self._checkTwoFileImportExportForDocumentInDocumentModule(dict(
       title = "foo",
       data = "a test file",
       content_type = "application/octet-stream",
       portal_type = "File",
-    ), '.obj')
+    ), '.bin')
 
   def test_twoFileImportExportForFileIdentifyingTypeByContentTypeEpub(self):
     """
diff --git a/product/ERP5OOo/tests/testDms.py b/product/ERP5OOo/tests/testDms.py
index 0150d5a2cb107492a631ac969d1658d3c081edb7..06f9c3201d50505cd3cff9a1d6f9a475140f0406 100644
--- a/product/ERP5OOo/tests/testDms.py
+++ b/product/ERP5OOo/tests/testDms.py
@@ -1612,7 +1612,7 @@ class TestDocument(TestDocumentMixin):
     image_count = builder._image_count
     failure_message = 'Expected image not found in ODF zipped archive'
     # fetch image from zipped archive content then compare with ERP5 Image
-    self.assertEqual(builder.extract('Pictures/%s.pjpg' % image_count),
+    self.assertEqual(builder.extract('Pictures/%s.jpg' % image_count),
                       image.getData(), failure_message)
 
     # Continue the test with image resizing support
diff --git a/product/ERP5Type/ZopePatch.py b/product/ERP5Type/ZopePatch.py
index bd0d636659ccbfb2bd21cccb3ddeaa9905ecbfad..5cddeb81468a810cac08ef5ee2b88e51526db999 100644
--- a/product/ERP5Type/ZopePatch.py
+++ b/product/ERP5Type/ZopePatch.py
@@ -86,6 +86,7 @@ from Products.ERP5Type.patches import DTMLDocument
 from Products.ERP5Type.patches import CMFCoreUtils
 from Products.ERP5Type.patches import ZopePageTemplate
 from Products.ERP5Type.patches import ZSQLMethod
+from Products.ERP5Type.patches import MimetypesRegistry
 
 # These symbols are required for backward compatibility
 from Products.ERP5Type.patches.PropertyManager import ERP5PropertyManager
diff --git a/product/ERP5Type/patches/MimetypesRegistry.py b/product/ERP5Type/patches/MimetypesRegistry.py
new file mode 100644
index 0000000000000000000000000000000000000000..3a45fc2015b73292d6dbae6dffc414433cdf1fb7
--- /dev/null
+++ b/product/ERP5Type/patches/MimetypesRegistry.py
@@ -0,0 +1,18 @@
+from Products.MimetypesRegistry import MimeTypesRegistry, mime_types
+
+preferred_extension_dict = {
+  "bin": "application/octet-stream",
+  "jpg": "image/jpeg",
+}
+
+def initialize(registry):
+    mime_types.initialize(registry)
+    for ext, mime in preferred_extension_dict.iteritems():
+        mime, = registry.lookup(mime)
+        assert type(mime.extensions) is tuple
+        x = list(mime.extensions)
+        x.remove(ext)
+        x.insert(0, ext)
+        mime.extensions = tuple(x)
+
+MimeTypesRegistry.initialize = initialize