diff --git a/docker/.env.default b/docker/.env.default
index 450265d0..eb723d61 100644
--- a/docker/.env.default
+++ b/docker/.env.default
@@ -1,4 +1,4 @@
-# L1 network option: can be either `optimism`, `optimism-goerli`, `optimism-sepolia` or `base-goerli`
+# L1 network option: can be either `optimism`, `optimism-goerli`, `optimism-sepolia`, `base`, `base-goerli` or `base-sepolia`
 NETWORK=optimism
 
 # The HTTP RPC endpoint of an L1 node
diff --git a/docker/start-op-geth.sh b/docker/start-op-geth.sh
index 1ac8e476..21333199 100755
--- a/docker/start-op-geth.sh
+++ b/docker/start-op-geth.sh
@@ -49,6 +49,14 @@ then
         wget "https://raw.githubusercontent.com/base-org/node/main/goerli/genesis-l2.json" -O ./genesis-l2.json
         geth init --datadir=$DATADIR ./genesis-l2.json
     fi
+elif [ $NETWORK = "base-sepolia" ]
+then
+    CHAIN_ID=84532
+    if [ ! -d $DATADIR ]
+    then
+        wget "https://raw.githubusercontent.com/base-org/node/main/sepolia/genesis-l2.json" -O ./genesis-l2.json
+        geth init --datadir=$DATADIR ./genesis-l2.json
+    fi
 elif [ $NETWORK = "custom" ] || [ $NETWORK = "devnet" ]
 then
     CHAIN_ID=$(jq '.config.chainId' ./genesis-l2.json)