diff --git a/src/opensemanticetl/enhance_rdf.py b/src/opensemanticetl/enhance_rdf.py
index e8c15d4..b7aeadc 100644
--- a/src/opensemanticetl/enhance_rdf.py
+++ b/src/opensemanticetl/enhance_rdf.py
@@ -2,6 +2,8 @@
 import logging
 import rdflib
 
+import etl_plugin_core
+
 # define used ontologies / standards / properties
 skos = rdflib.Namespace('http://www.w3.org/2004/02/skos/core#')
 owl = rdflib.Namespace('http://www.w3.org/2002/07/owl#')
@@ -13,7 +15,7 @@
 # Import RDF graph file granular, not only as a whole single file:
 # for every entity (subject) own document with properties (predicates) as facets and its objects as values
 
-class enhance_rdf(object):
+class enhance_rdf(etl_plugin_core.Plugin):
 
     def __init__(self, verbose=False):
 
@@ -22,8 +24,6 @@ def __init__(self, verbose=False):
         self.labelProperties = (rdflib.term.URIRef(u'http://www.w3.org/2004/02/skos/core#prefLabel'), rdflib.term.URIRef(u'http://www.w3.org/2000/01/rdf-schema#label'),
                                 rdflib.term.URIRef(u'http://www.w3.org/2004/02/skos/core#altLabel'), rdflib.term.URIRef(u'http://www.w3.org/2004/02/skos/core#hiddenLabel'))
 
-        self.read_configfile('/etc/opensemanticsearch/facets')
-
 
     #
     # get all labels, alternate labels / synonyms for the URI/subject, if not there, use subject (=URI) as default
diff --git a/src/opensemanticetl/etl_file.py b/src/opensemanticetl/etl_file.py
index 1388213..b839abe 100755
--- a/src/opensemanticetl/etl_file.py
+++ b/src/opensemanticetl/etl_file.py
@@ -90,6 +90,7 @@ def read_configfiles(self):
         self.read_configfile('/etc/opensemanticsearch/etl-webadmin')
         self.read_configfile('/etc/opensemanticsearch/etl-custom')
         self.read_configfile('/etc/opensemanticsearch/enhancer-rdf')
+        self.read_configfile('/etc/opensemanticsearch/facets')
         self.read_configfile('/etc/opensemanticsearch/connector-files')
         self.read_configfile('/etc/opensemanticsearch/connector-files-custom')
 
diff --git a/src/opensemanticetl/etl_web.py b/src/opensemanticetl/etl_web.py
index 102c9ba..f4d8441 100755
--- a/src/opensemanticetl/etl_web.py
+++ b/src/opensemanticetl/etl_web.py
@@ -73,6 +73,7 @@ def read_configfiles(self):
         self.read_configfile('/etc/opensemanticsearch/etl-webadmin')
         self.read_configfile('/etc/opensemanticsearch/etl-custom')
         self.read_configfile('/etc/opensemanticsearch/enhancer-rdf')
+        self.read_configfile('/etc/opensemanticsearch/facets')
         self.read_configfile('/etc/opensemanticsearch/connector-web')
         self.read_configfile('/etc/opensemanticsearch/connector-web-custom')