diff --git a/xrootd-ssi-protobuf-interface b/xrootd-ssi-protobuf-interface
index a0852801beb2802954596389b5a7126999c9c1c6..64b6a514a5059a0a4d9748578218f4f6a4d95d23 160000
--- a/xrootd-ssi-protobuf-interface
+++ b/xrootd-ssi-protobuf-interface
@@ -1 +1 @@
-Subproject commit a0852801beb2802954596389b5a7126999c9c1c6
+Subproject commit 64b6a514a5059a0a4d9748578218f4f6a4d95d23