diff --git a/octavia_lib/common/constants.py b/octavia_lib/common/constants.py
index c70f029..cbc8744 100644
--- a/octavia_lib/common/constants.py
+++ b/octavia_lib/common/constants.py
@@ -137,15 +137,17 @@ PROTOCOL_HTTP = 'HTTP'
 PROTOCOL_HTTPS = 'HTTPS'
 PROTOCOL_TERMINATED_HTTPS = 'TERMINATED_HTTPS'
 PROTOCOL_PROXY = 'PROXY'
+PROTOCOL_PROXYV2 = 'PROXYV2'
 PROTOCOL_SCTP = 'SCTP'
 SUPPORTED_PROTOCOLS = (PROTOCOL_TCP, PROTOCOL_HTTPS, PROTOCOL_HTTP,
-                       PROTOCOL_TERMINATED_HTTPS, PROTOCOL_PROXY, PROTOCOL_UDP,
-                       PROTOCOL_SCTP)
+                       PROTOCOL_TERMINATED_HTTPS, PROTOCOL_PROXY,
+                       PROTOCOL_PROXYV2, PROTOCOL_UDP, PROTOCOL_SCTP)
 LISTENER_SUPPORTED_PROTOCOLS = (PROTOCOL_TCP, PROTOCOL_HTTPS, PROTOCOL_HTTP,
                                 PROTOCOL_TERMINATED_HTTPS, PROTOCOL_UDP,
                                 PROTOCOL_SCTP)
 POOL_SUPPORTED_PROTOCOLS = (PROTOCOL_TCP, PROTOCOL_HTTP, PROTOCOL_HTTPS,
-                            PROTOCOL_PROXY, PROTOCOL_UDP, PROTOCOL_SCTP)
+                            PROTOCOL_PROXY, PROTOCOL_PROXYV2, PROTOCOL_UDP,
+                            PROTOCOL_SCTP)
 
 
 ALPN_PROTOCOL_HTTP_1_0 = "http/1.0"