diff --git a/lustre/autoconf/lustre-version.ac b/lustre/autoconf/lustre-version.ac
index dcd0b9dc7592b50b418dda36040b8c2a8f17eacf..22d1b45fb75c5c47382c8cb7759b47c54ebc1654 100644
--- a/lustre/autoconf/lustre-version.ac
+++ b/lustre/autoconf/lustre-version.ac
@@ -5,10 +5,10 @@ m4_define([LUSTRE_FIX],[50])
 # Note: we're starting prerelease versions at 50 this time.
 
 dnl # don't forget to update the service tags info
-m4_define([CLIENT_URN],["LUSTRE-165-CLT"])
-m4_define([MDS_URN],["LUSTRE-165-MDS"])
-m4_define([MGS_URN],["LUSTRE-165-MGS"])
-m4_define([OSS_URN],["LUSTRE-165-OSS"])
+m4_define([CLIENT_URN],["LUSTRE-166-CLT"])
+m4_define([MDS_URN],["LUSTRE-166-MDS"])
+m4_define([MGS_URN],["LUSTRE-166-MGS"])
+m4_define([OSS_URN],["LUSTRE-166-OSS"])
 
 dnl # liblustre delta is 0.0.1.32 , next version with fixes is ok, but
 dnl # after following release candidate/beta would spill this warning already.