diff --git a/dfgfo.ttl b/dfgfo.ttl
index 96adda6..2e0be3d 100644
--- a/dfgfo.ttl
+++ b/dfgfo.ttl
@@ -1,9 +1,9 @@
 @prefix dc: <http://purl.org/dc/elements/1.1/> .
-@prefix dcterms: <http://purl.org/dc/terms/> .
 @prefix dfgfo: <https://github.com/tibonto/dfgfo/> .
 @prefix owl: <http://www.w3.org/2002/07/owl#> .
 @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix skos: <http://www.w3.org/2004/02/skos/core#> .
+@prefix terms: <http://purl.org/dc/terms/> .
 
 dc:creator a owl:AnnotationProperty .
 
@@ -11,7 +11,7 @@ dc:description a owl:AnnotationProperty .
 
 dc:title a owl:AnnotationProperty .
 
-dcterms:license a owl:AnnotationProperty .
+terms:license a owl:AnnotationProperty .
 
 skos:altLabel a owl:AnnotationProperty .
 
@@ -22,7 +22,7 @@ skos:altLabel a owl:AnnotationProperty .
     dc:description "DFG Fachsystematik Ontology / DFG Classification of Subject Areas Ontology (DFGFO) encodes the DFG Classification of Subject Areas into an ontology, where each subject number are is enconded into a Class with subclass statements following the DFG Classification of Subject Areas hierarchy. Labels are provide German and English." ;
     dc:title "DFG Fachsystematik - Ontologie - 2024-2028"@de,
         "DFG Classification of Subject Areas Ontology - 2024-2028"@en ;
-    dcterms:license <https://creativecommons.org/licenses/by/4.0/> ;
+    terms:license <https://creativecommons.org/licenses/by/4.0/> ;
     rdfs:comment "DFG Classification of Subject Areas Ontology is being created as part of the TIB Terminology Service"@de,
         "DFG Fachsystematik - Ontology wurde zur Integration in den  TIB Terminology Service erstellt"@de .