diff --git a/README.md b/README.md
index 069fe35..437581e 100644
--- a/README.md
+++ b/README.md
@@ -3,15 +3,16 @@
 
 ![screenshot](https://raw.githubusercontent.com/TekniskSupport/ST-zigbee-network-map/master/screenshot.png "screenshot")
 
-Made primarily for my own use. Uses *European IDE*, so you might need to change the [URI](https://github.com/TekniskSupport/ST-zigbee-network-map/blob/master/_scrape.py#L8)
-
 First run:
 `python -m pip install matplotlib bs4 networkx requests`
 
 Then run from terminal:
 `python scrape-st.py`
 
-### Extract cookie from session:
+### Optionally pass sessionID as commandline argument
+`python scrape-st.py YOUR-JSESSION-ID`
+
+### Extract JSESSIONID value from cookie:
 Chrome:
 
 - login to [IDE](https://account.smartthings.com)
diff --git a/_scrape.py b/_scrape.py
index 5aa73ef..2bd543e 100644
--- a/_scrape.py
+++ b/_scrape.py
@@ -1,10 +1,14 @@
+import sys
 import networkx as nx
 import re
 import requests
 from bs4 import BeautifulSoup
 
 G       = nx.Graph()
-cookies = {'JSESSIONID': input("JSESSIONID:")}
+if (len(sys.argv) > 1):
+    cookies = {'JSESSIONID': sys.argv[1]}
+else:
+    cookies = {'JSESSIONID': input("JSESSIONID:")}
 hostList = {
     'https://graph.api.smartthings.com',
     'https://graph-na02-useast1.api.smartthings.com',