diff --git a/visualizer.py b/visualizer.py
index 04fea692c6f92037049c41ed7993aa6ea125ede8..ce42fb54eed3a412e519cc0e85e1a5951cea2a4b 100755
--- a/visualizer.py
+++ b/visualizer.py
@@ -4,7 +4,6 @@ import datetime
 from io import BytesIO
 import json
 import math
-import sys
 from types import SimpleNamespace
 from urllib.request import urlopen
 from wsgiref.handlers import CGIHandler
@@ -13,6 +12,7 @@ from wsgiref.handlers import CGIHandler
 activator = '/home/ograham/venv/bin/activate_this.py'
 exec(open(activator).read(), {'__file__': activator})
 
+import asccol
 from dataclasses import make_dataclass
 from flask import abort, Flask, g, jsonify, render_template, request, Response
 import matplotlib
@@ -20,9 +20,6 @@ import matplotlib.pyplot as plt
 import numpy as np
 from pyld import jsonld
 
-sys.path.append('/home/ograham/data-plotting')
-import asccol
-
 Measurement = make_dataclass('Measurement', ['url_name', 'field', 'title'])
 measurements = {m.url_name: m for m in (
     Measurement('temperature', 1, 'Temperature (C)'),