diff --git a/config/datatypes_conf.xml.sample b/config/datatypes_conf.xml.sample
index 8e8445aadac..054bb6274c5 100644
--- a/config/datatypes_conf.xml.sample
+++ b/config/datatypes_conf.xml.sample
@@ -38,6 +38,7 @@
     <datatype extension="len" type="galaxy.datatypes.chrominfo:ChromInfo" display_in_upload="true">
       <converter file="len_to_linecount.xml" target_datatype="linecount" />
     </datatype>
+    <datatype extension="dmnddb" type="galaxy.datatypes.binary:Binary" subclass="True" display_in_upload="false"/>
     <datatype extension="bigbed" type="galaxy.datatypes.binary:BigBed" mimetype="application/octet-stream" display_in_upload="true">
       <display file="ucsc/bigbed.xml" />
       <display file="igb/bb.xml" />