diff --git a/arkindex/project/aws.py b/arkindex/project/aws.py
index f7a5107defaebc3e40d56f510f1d84d3eb50d9ed..8047332fe9f97fe8f3755ec92e217f86ee22f4b6 100644
--- a/arkindex/project/aws.py
+++ b/arkindex/project/aws.py
@@ -21,6 +21,9 @@ session = boto3.session.Session(
 config = Config(
     region_name=settings.AWS_REGION,
     signature_version='s3v4',
+    s3={
+        'addressing_style': 'auto' if settings.AWS_ENDPOINT else 'virtual',
+    }
 )
 
 s3 = session.resource(