diff --git a/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/DocumentModule_viewFieldLibrary/listbox_thumbnail.xml b/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/DocumentModule_viewFieldLibrary/listbox_thumbnail.xml
index 42aac8726b0990e18275980b2f44d2518bf7ebb9..48ef62bda39ea2f23c4f10253db12a8ace17968c 100644
--- a/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/DocumentModule_viewFieldLibrary/listbox_thumbnail.xml
+++ b/bt5/erp5_dms/SkinTemplateItem/portal_skins/erp5_dms/DocumentModule_viewFieldLibrary/listbox_thumbnail.xml
@@ -262,7 +262,7 @@
                 </item>
                 <item>
                     <key> <string>image_format</string> </key>
-                    <value> <string>jpg</string> </value>
+                    <value> <string>png</string> </value>
                 </item>
                 <item>
                     <key> <string>image_resolution</string> </key>
diff --git a/bt5/erp5_dms/bt/revision b/bt5/erp5_dms/bt/revision
index a17f5064dc2b291d6ce36809d0832c97f7ea649c..0f746c73b16ee0ca210cff3fb7e1c98e6e1d2aa8 100644
--- a/bt5/erp5_dms/bt/revision
+++ b/bt5/erp5_dms/bt/revision
@@ -1 +1 @@
-1037
\ No newline at end of file
+1038
\ No newline at end of file
diff --git a/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/ERP5Site_viewSearchResult/listbox_thumbnail.xml b/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/ERP5Site_viewSearchResult/listbox_thumbnail.xml
index dd21f17bbf068dfdf3571c0dd246379b466633a0..d3b445ba0fdd554646184c190dce2f675c22fe07 100644
--- a/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/ERP5Site_viewSearchResult/listbox_thumbnail.xml
+++ b/product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/ERP5Site_viewSearchResult/listbox_thumbnail.xml
@@ -264,7 +264,7 @@
                 </item>
                 <item>
                     <key> <string>image_format</string> </key>
-                    <value> <string>jpg</string> </value>
+                    <value> <string>png</string> </value>
                 </item>
                 <item>
                     <key> <string>image_resolution</string> </key>
diff --git a/product/ERP5/bootstrap/erp5_core/bt/revision b/product/ERP5/bootstrap/erp5_core/bt/revision
index 6f6edaeeca424982b9e5fb63a83d8d5d62ed9fa2..6b94c06e524f1854be26ce0e4330cce766d09ccf 100644
--- a/product/ERP5/bootstrap/erp5_core/bt/revision
+++ b/product/ERP5/bootstrap/erp5_core/bt/revision
@@ -1 +1 @@
-1307
\ No newline at end of file
+1308
\ No newline at end of file