diff --git a/OpenWormData/scripts/insert_worm.py b/OpenWormData/scripts/insert_worm.py
index 4179dd8ec..bf56522bc 100644
--- a/OpenWormData/scripts/insert_worm.py
+++ b/OpenWormData/scripts/insert_worm.py
@@ -276,8 +276,6 @@ def do_insert(ident, config="default.conf", logging=False, imports_context_ident
                 print('saving', src)
                 CTX.add_import(src.data_context)
                 EVCTX.add_import(src.evidence_context)
-                for ctx in src.contexts:
-                    IWCTX.add_import(ctx)
         IWCTX.save_context(graph, saved_contexts=saved_contexts)
         IWCTX.save_imports(imports_context)
         print('imports context size', len(imports_context))
diff --git a/PyOpenWorm/data_trans/data_with_evidence_ds.py b/PyOpenWorm/data_trans/data_with_evidence_ds.py
index 11e704547..2b9bc64c5 100644
--- a/PyOpenWorm/data_trans/data_with_evidence_ds.py
+++ b/PyOpenWorm/data_trans/data_with_evidence_ds.py
@@ -28,7 +28,6 @@ def __init__(self, *args, **kwargs):
         self.data_context_property(self.data_context.rdf_object)
         self.evidence_context_property(self.evidence_context.rdf_object)
 
-        self.contexts = []
         self.__ad_hoc_contexts = dict()
 
     def data_context_for(self, **kwargs):