diff --git a/scripts/gen_genesis.ml b/scripts/gen_genesis.ml
index ab7abd1d5..e39e1101d 100644
--- a/scripts/gen_genesis.ml
+++ b/scripts/gen_genesis.ml
@@ -16,9 +16,6 @@
 let date =
   Lwt_main.run (Lwt_process.pread_line (Lwt_process.shell "date +%FT%TZ --utc"))
 
-let int_date =
-  Lwt_main.run (Lwt_process.pread_line (Lwt_process.shell "date +%y%m%d "))
-
 let prefix = "BLockGenesisGenesisGenesisGenesisGenesis"
 let suffix = String.sub Digest.(to_hex (string date)) 0 5
 let p =
@@ -47,9 +44,9 @@ let _ =
 let sed =
   Format.sprintf
     "sed -i \
-     -e 's/minor = [0-9]* ;/minor = %s ;/' \
+     -e 's/name = \"TEZOS[^\"]*\" ;/name = \"TEZOS_%s\" ;/' \
     ../src/lib_shell/distributed_db_message.ml"
-    int_date
+    date
 
 let _ =
   Lwt_main.run (Lwt_process.exec (Lwt_process.shell sed))
diff --git a/src/lib_shell/distributed_db_message.ml b/src/lib_shell/distributed_db_message.ml
index 71e381977..e6c2558e3 100644
--- a/src/lib_shell/distributed_db_message.ml
+++ b/src/lib_shell/distributed_db_message.ml
@@ -172,7 +172,7 @@ let versions =
   let open P2p_version in
   [ { name = "TEZOS" ;
       major = 0 ;
-      minor = 180307 ;
+      minor = 0 ;
     }
   ]