diff --git a/register_rln.sh b/register_rln.sh
index 3e79b7b..7d52572 100755
--- a/register_rln.sh
+++ b/register_rln.sh
@@ -8,10 +8,10 @@ fi
 
 # TODO: Set nwaku release when ready instead of quay
 
-docker run -v $pwd/keystore:/keystore/:Z quay.io/wakuorg/nwaku-pr:2189 generateRlnKeystore \
---rln-relay-eth-client-address=$ETH_CLIENT_ADDRESS \
---rln-relay-eth-private-key=$ETH_TESTNET_KEY \
+docker run -v $(pwd)/keystore:/keystore/:Z quay.io/wakuorg/nwaku-pr:2189 generateRlnKeystore \
+--rln-relay-eth-client-address=${ETH_CLIENT_ADDRESS} \
+--rln-relay-eth-private-key=${ETH_TESTNET_KEY} \
 --rln-relay-eth-contract-address=0xF471d71E9b1455bBF4b85d475afb9BB0954A29c4 \
 --rln-relay-cred-path=/keystore/keystore.json \
---rln-relay-cred-password=$KEYSTORE_PASSWORD \
---execute
\ No newline at end of file
+--rln-relay-cred-password=${KEYSTORE_PASSWORD} \
+--execute