diff --git a/app/repositories/orient_db/edge_repository.rb b/app/repositories/orient_db/edge_repository.rb
index e69ffd8dab4f0baf81bc17681a4c024b23b05850..7361e47807a83d441676cec21928455936318f6d 100644
--- a/app/repositories/orient_db/edge_repository.rb
+++ b/app/repositories/orient_db/edge_repository.rb
@@ -6,7 +6,7 @@ module OrientDb
     end
 
     def create_edge(edge_class, from_id, to_id)
-      OrientDb::Client.instance.command "CREATE EDGE #{edge_class} FROM #{from_id} TO #{to_id}"
+      connection.command "CREATE EDGE #{edge_class} FROM #{from_id} TO #{to_id}"
     end
 
   end