diff --git a/advntr/reference_vntr.py b/advntr/reference_vntr.py
index 97ef6a2..acd17ba 100644
--- a/advntr/reference_vntr.py
+++ b/advntr/reference_vntr.py
@@ -182,7 +182,7 @@ def identify_homologous_vntrs(vntrs, chromosome=None):
 def load_unique_vntrs_data():
     import sqlite3
     vntrs = []
-    db_file = TRAINED_MODELS_DB
+    db_file = settings.TRAINED_MODELS_DB
     db = sqlite3.connect(db_file)
     cursor = db.cursor()
     cursor.execute('''SELECT id, nonoverlapping, chromosome, ref_start, gene_name, annotation, pattern, left_flanking,