diff --git a/op/bob/mainnet/genesis.json b/op/bob/mainnet/genesis.json
index 3ab0bc2d..046e3e3c 100644
--- a/op/bob/mainnet/genesis.json
+++ b/op/bob/mainnet/genesis.json
@@ -32,6 +32,7 @@
     "graniteTime": 1726070401,
     "holoceneTime": 1736445601,
     "isthmusTime": 1746806401,
+    "pragueTime": 1746806401,
     "jovianTime": 1773325801
   },
   "nonce": "0x0",