diff --git a/example-world.toml b/example-world.toml
index 7d79ab9..f88975a 100644
--- a/example-world.toml
+++ b/example-world.toml
@@ -24,5 +24,8 @@ KEY_MNEMONIC="enact adjust liberty squirrel bulk ticket invest tissue antique wi
 FAUCET_ADDR="world142fg37yzx04cslgeflezzh83wa4xlmjpms0sg5"
 BLOCK_TIME="1s"
 
+[common]
+ROUTER_KEY=4a02ea35e37727a2e22b62520c03a3cf0b139418a4401027baedfc93834dc6bd # key to secure router communications.
+
 [nakama]
 ENABLE_ALLOWLIST="false" # enable nakama's beta key feature. you can generate and claim beta keys by setting this to true
\ No newline at end of file