diff --git a/src/pva/pv/pvaConstants.h b/src/pva/pv/pvaConstants.h
index 2ef9635..b4423e9 100644
--- a/src/pva/pv/pvaConstants.h
+++ b/src/pva/pv/pvaConstants.h
@@ -29,7 +29,7 @@ namespace pvAccess {
 const epics::pvData::int8 PVA_MAGIC = static_cast<epics::pvData::int8>(0xCA);
 
 const epics::pvData::int8 PVA_SERVER_PROTOCOL_REVISION = 2;
-const epics::pvData::int8 PVA_CLIENT_PROTOCOL_REVISION = 1;
+const epics::pvData::int8 PVA_CLIENT_PROTOCOL_REVISION = 2;
 
 /** PVA protocol revision (implemented by this library). */
 const epics::pvData::int8 PVA_PROTOCOL_REVISION EPICS_DEPRECATED = 1;