diff --git a/.env.example b/.env.example
index 254bc72..e0fbd74 100644
--- a/.env.example
+++ b/.env.example
@@ -8,7 +8,8 @@ ETH_TESTNET_ACCOUNT=<YOUR_TESTNET_ACCOUNT_ADDRESS_HERE>
 
 # Private key of testnet where you have Linea Sepolia ETH that would be staked into RLN contract.
 # Note: make sure you don't use the '0x' prefix.
-#       e.g. ETH_TESTNET_KEY=0116196e9a8abed42dd1a2...63fa2a5a17b0c27d716b87ded2c54f1bf192a0b
+# Use the following as a format example, but replace it with your own private key value
+#       e.g. ETH_TESTNET_KEY=abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234abcd1234
 ETH_TESTNET_KEY=<YOUR_TESTNET_PRIVATE_KEY_HERE>
 
 # Address of the RLN contract on Linea Sepolia.