diff --git a/docker/compose.yaml b/docker/compose.yaml
index 1512f6a..ebc1aff 100644
--- a/docker/compose.yaml
+++ b/docker/compose.yaml
@@ -49,6 +49,7 @@ services:
       - ethereum-sidecar
       - --log_format=json
       - --ethereum-sidecar.server.ethereum-node-address=${MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS}
+      - --ethereum-sidecar.server.network=${MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK}
     restart: always
     expose:
       - 7500
diff --git a/docker/mainnet.env.example b/docker/mainnet.env.example
index 84e44f8..60809b1 100644
--- a/docker/mainnet.env.example
+++ b/docker/mainnet.env.example
@@ -29,6 +29,7 @@ MEZOD_CHAIN_ID="mezo_31612-1"
 MEZOD_HOME="/var/mezod"
 MEZOD_MONIKER="<change me>"
 MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS="<change me>" # Ethereum Mainnet WS RPC
+MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK="mainnet"
 MEZOD_LOG_LEVEL=info
 MEZOD_LOG_FORMAT=json # json|plain
 MEZOD_PORT_P2P=26656 # Default. It should be changed in case of a custom setup
diff --git a/docker/testnet.env.example b/docker/testnet.env.example
index 432419d..5e730df 100644
--- a/docker/testnet.env.example
+++ b/docker/testnet.env.example
@@ -29,6 +29,7 @@ MEZOD_CHAIN_ID="mezo_31611-1"
 MEZOD_HOME="/var/mezod"
 MEZOD_MONIKER="<change me>"
 MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS="<change me>"
+MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK="sepolia"
 MEZOD_LOG_LEVEL=info
 MEZOD_LOG_FORMAT=json # json|plain
 MEZOD_PORT_P2P=26656 # Default. It should be changed in case of a custom setup
diff --git a/helm-chart/mezod/templates/statefulset.yaml b/helm-chart/mezod/templates/statefulset.yaml
index 7e9fb20..e48f011 100644
--- a/helm-chart/mezod/templates/statefulset.yaml
+++ b/helm-chart/mezod/templates/statefulset.yaml
@@ -136,6 +136,11 @@ spec:
             - --home=/tmp/dummy-data
             - --log_format=json
             - --ethereum-sidecar.server.ethereum-node-address=$(ETHEREUM_ENDPOINT)
+            {{- if eq .Values.env.NETWORK "mainnet" }}
+            - --ethereum-sidecar.server.network=mainnet
+            {{- else if eq .Values.env.NETWORK "testnet" }}
+            - --ethereum-sidecar.server.network=sepolia
+            {{- end }}
           env:
             - name: ETHEREUM_ENDPOINT
               valueFrom:
diff --git a/native/mainnet.env.example b/native/mainnet.env.example
index 650e110..d3c8eb3 100755
--- a/native/mainnet.env.example
+++ b/native/mainnet.env.example
@@ -16,6 +16,7 @@ export MEZOD_ETHEREUM_SIDECAR_CLIENT_SERVER_ADDRESS="127.0.0.1:7500"
 # Address to an ethereum node (web socket address)
 # Example: wss://your.eth.node
 export MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS="<eth_node_address>"
+export MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK="mainnet"
 export MEZOD_LOG_FORMAT="json"
 export MEZOD_KEY_NAME="key0"
 export MEZOD_LOGLEVEL="info"
diff --git a/native/testnet.env.example b/native/testnet.env.example
index 13feff1..9a17493 100755
--- a/native/testnet.env.example
+++ b/native/testnet.env.example
@@ -16,6 +16,7 @@ export MEZOD_ETHEREUM_SIDECAR_CLIENT_SERVER_ADDRESS="127.0.0.1:7500"
 # Address to an ethereum node (web socket address)
 # Example: wss://your.eth.node
 export MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS="<eth_node_address>"
+export MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK="sepolia"
 export MEZOD_LOG_FORMAT="json"
 export MEZOD_KEY_NAME="key0"
 export MEZOD_LOGLEVEL="info"
diff --git a/native/v-kit.sh b/native/v-kit.sh
index 8f09011..cddd046 100755
--- a/native/v-kit.sh
+++ b/native/v-kit.sh
@@ -183,6 +183,7 @@ configure_mezo() {
 
     ${MEZO_EXEC} toml set \
         ${app_config_file} \
+        -v ethereum-sidecar.server.network="${MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK}" \
         -v ethereum-sidecar.client.server-address="0.0.0.0:7500" \
         -v api.enable=true \
         -v api.address="tcp://0.0.0.0:1317" \
@@ -245,7 +246,7 @@ After=network.target
 [Service]
 Restart=no
 ExecStartPre=/bin/echo "Starting ethereum-sidecar systemd initialization..."
-ExecStart=${MEZO_EXEC} ethereum-sidecar --log_format=${MEZOD_LOG_FORMAT} --ethereum-sidecar.server.ethereum-node-address=${MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS}
+ExecStart=${MEZO_EXEC} ethereum-sidecar --log_format=${MEZOD_LOG_FORMAT} --ethereum-sidecar.server.network=${MEZOD_ETHEREUM_SIDECAR_SERVER_NETWORK} --ethereum-sidecar.server.ethereum-node-address=${MEZOD_ETHEREUM_SIDECAR_SERVER_ETHEREUM_NODE_ADDRESS}
 StandardOutput=journal
 StandardError=journal
 User=root