diff --git a/config/datatypes_conf.xml.sample b/config/datatypes_conf.xml.sample
index 03a29b00ad2..f949e9605c0 100644
--- a/config/datatypes_conf.xml.sample
+++ b/config/datatypes_conf.xml.sample
@@ -160,7 +160,7 @@
     <datatype extension="loom" type="galaxy.datatypes.binary:Loom" description="An HDF5-based Loom File" mimetype="application/octet-stream" display_in_upload="true"/>
     <datatype extension="h5ad" type="galaxy.datatypes.binary:Anndata" description="An HDF5-based anndata File" mimetype="application/octet-stream" display_in_upload="true"/>
     <datatype extension="mz5" type="galaxy.datatypes.binary:H5" subclass="true" mimetype="application/octet-stream" display_in_upload="true"/>
-    <datatype extension="hyphy_json_results" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="false"/>
+    <datatype extension="hyphy_results.json" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="false"/>
     <datatype extension="hivtrace" type="galaxy.datatypes.text:Json" mimetype="application/json" subclass="true" display_in_upload="false"/>
     <datatype extension="cool" type="galaxy.datatypes.binary:Cool" mimetype="application/octet-stream" display_in_upload="true"/>
     <datatype extension="html" type="galaxy.datatypes.text:Html" mimetype="text/html"/>