diff --git a/node-daemon/pvcd/common.py b/node-daemon/pvcd/common.py
index 7567b155..45ecf8b9 100644
--- a/node-daemon/pvcd/common.py
+++ b/node-daemon/pvcd/common.py
@@ -119,7 +119,7 @@ def createIPAddress(ipaddr, cidrnetmask, dev):
         )
     )
     run_os_command(
-        'arping -P -U -W 0.2 -c5 -I {dev} -S {ip} {ip}'.format(
+        'arping -P -U -W 0.2 -c5 -i {dev} -S {ip} {ip}'.format(
             dev=dev,
             ip=ipaddr
         ),