diff --git a/bricksrc/quantities.py b/bricksrc/quantities.py
index 06f31f9c..6b50c44f 100644
--- a/bricksrc/quantities.py
+++ b/bricksrc/quantities.py
@@ -1,9 +1,9 @@
 from brickschema.graph import Graph
 from ontoenv import OntoEnv
 from rdflib import Literal, URIRef
-from .namespaces import SKOS, OWL, RDFS, BRICK, QUDTQK, QUDTDV, QUDT, UNIT
+from .namespaces import SKOS, RDFS, BRICK, QUDTQK, QUDTDV, QUDT, UNIT
 
-env = OntoEnv(initialize=True)
+env = OntoEnv(initialize=True, search_dirs=["support/"])
 g = Graph()
 g.load_file("support/VOCAB_QUDT-QUANTITY-KINDS-ALL-v2.1.ttl")
 g.load_file("support/VOCAB_QUDT-UNITS-ALL-v2.1.ttl")