diff --git a/README.md b/README.md
index ebc21e8d0bd9..99d8fbcf6444 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ BUILDER API OPTIONS:
   --builder.secret_key value               Builder key used for signing blocks (default: "0x2fc12ae741f29701f8e30f5de6350766c020cb80768a0ff01e6838ffd2431e11") [$BUILDER_SECRET_KEY]
   --builder.relay_secret_key value         Builder local relay API key used for signing headers (default: "0x2fc12ae741f29701f8e30f5de6350766c020cb80768a0ff01e6838ffd2431e11") [$BUILDER_RELAY_SECRET_KEY]
   --builder.listen_addr value              Listening address for builder endpoint (default: ":28545") [$BUILDER_LISTEN_ADDR]
-  --builder.genesis_fork_version value     Gensis fork version. For kiln use 0x70000069 (default: "0x00000000") [$BUILDER_GENESIS_FORK_VERSION]
+  --builder.genesis_fork_version value     Genesis fork version. For kiln use 0x70000069 (default: "0x00000000") [$BUILDER_GENESIS_FORK_VERSION]
   --builder.bellatrix_fork_version value   Bellatrix fork version. For kiln use 0x70000071 (default: "0x02000000") [$BUILDER_BELLATRIX_FORK_VERSION]
   --builder.genesis_validators_root value  Genesis validators root of the network. For kiln use 0x99b09fcd43e5905236c370f184056bec6e6638cfc31a323b304fc4aa789cb4ad (default: "0x0000000000000000000000000000000000000000000000000000000000000000") [$BUILDER_GENESIS_VALIDATORS_ROOT]
   --builder.beacon_endpoint value          Beacon endpoint to connect to for beacon chain data (default: "http://127.0.0.1:5052") [$BUILDER_BEACON_ENDPOINT]