diff --git a/tests/test.py b/tests/test.py
index 75397cc0715b0..58fa758da4a65 100644
--- a/tests/test.py
+++ b/tests/test.py
@@ -15,14 +15,13 @@
 def upload_jar(jar):
     conn = S3Connection(os.environ['AWS_ACCESS_KEY_ID'], os.environ['AWS_SECRET_ACCESS_KEY'])
     bucket = conn.get_bucket(os.environ['S3_BUCKET'])
+    basename = os.path.basename(jar)
 
-    key = Key(bucket, 'S3_PREFIX')
+    key = Key(bucket, '{}/{}'.format(os.environ['S3_PREFIX'], basename))
     key.metadata = {'Content-Type': 'application/java-archive'}
     key.set_contents_from_filename(jar)
     key.make_public()
 
-    basename = os.path.basename(jar)
-
     jar_url = "http://{0}.s3.amazonaws.com/{1}/{2}".format(
         os.environ['S3_BUCKET'],
         os.environ['S3_PREFIX'],