diff --git a/server/app.py b/server/app.py
index dcb51a3..45da9f5 100644
--- a/server/app.py
+++ b/server/app.py
@@ -43,7 +43,10 @@ db.autocommit(True)
 
 mqtt_client_id = "PiXelTubeMaster-"+wlan_mac_address
 
-TUBE_INDEX = None
+cur = db.cursor()
+cur.execute("SELECT mac_address, universe, dmx_address FROM tubes")
+TUBE_INDEX = cur.fetchall()
+cur.close()
 
 # Function to register a tube in the database
 def register_tube(mac_address):