diff --git a/src/py/bbctrl/Web.py b/src/py/bbctrl/Web.py
index d31eb77..f44517e 100644
--- a/src/py/bbctrl/Web.py
+++ b/src/py/bbctrl/Web.py
@@ -131,7 +131,7 @@ class NetworkData(bbctrl.APIHandler):
 
     def get(self):
         try:
-            ipAddresses = subprocess.P(
+            ipAddresses = subprocess.check_output(
                 "ip -4 addr | grep -oE '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}'", shell=True).decode().split()
             ipAddresses.remove("127.0.0.1")
             regex = re.compile(r'/255$/')