diff --git a/erigon-fullnode.cfg b/erigon-fullnode.cfg
index 165c4cad..2e21c0c6 100644
--- a/erigon-fullnode.cfg
+++ b/erigon-fullnode.cfg
@@ -2,12 +2,12 @@
     chain: ${CHAIN}
     labels:
         provider: ${PROVIDER}
-	archive: false
-	client_type: erigon
+        archive: false
+        client_type: erigon
     method-groups:
       enable:
         - trace
-	- debug
+        - debug
     methods:
       enabled:
         - name: erigon_forks
@@ -23,7 +23,7 @@
         - name: eth_getTransactionReceipt          
     connection:
       generic:
-	rpc:
+        rpc:
           url: "${RPC_URL}"
         ws:
           frameSize: 20Mb
diff --git a/erigon-gnosis-fullnode.cfg b/erigon-gnosis-fullnode.cfg
index e9a9a92f..7e138d1b 100644
--- a/erigon-gnosis-fullnode.cfg
+++ b/erigon-gnosis-fullnode.cfg
@@ -3,12 +3,12 @@ upstreams:
     chain: ${CHAIN}
     labels:
         provider: ${PROVIDER}
-	archive: false
-	client_type: erigon
+        archive: false
+        client_type: erigon
     method-groups:
       enable:
         - trace
-	- debug
+        - debug
     methods:
       enabled:
         - name: erigon_forks
diff --git a/polygon-erigon-fullnode.cfg b/polygon-erigon-fullnode.cfg
index e9a9a92f..6d78d7d2 100644
--- a/polygon-erigon-fullnode.cfg
+++ b/polygon-erigon-fullnode.cfg
@@ -1,14 +1,13 @@
-upstreams:
   - id: ${ID}
     chain: ${CHAIN}
     labels:
         provider: ${PROVIDER}
-	archive: false
-	client_type: erigon
+        archive: false
+        client_type: erigon
     method-groups:
       enable:
         - trace
-	- debug
+        - debug
     methods:
       enabled:
         - name: erigon_forks
diff --git a/reference-rpc-endpoint.json b/reference-rpc-endpoint.json
index 633de8df..9a9c2123 100644
--- a/reference-rpc-endpoint.json
+++ b/reference-rpc-endpoint.json
@@ -40,5 +40,6 @@
     "holesky":{"id":17000,"urls":["https://rpc.holesky.ethpandaops.io"]},
     "gnosis":{"id":100,"urls":["https://gnosis-mainnet.public.blastapi.io"]},
     "mantle":{"id":5000,"urls":["https://rpc.mantle.xyz"]},
-    "polygon":{"id":137,"urls":["https://polygon-rpc.com"]}
+    "polygon":{"id":137,"urls":["https://polygon-rpc.com"]},
+    "linea":{"id":59144,"urs":["https://rpc.linea.build"]}
 }
diff --git a/upstreams.sh b/upstreams.sh
index 78640956..1860347f 100755
--- a/upstreams.sh
+++ b/upstreams.sh
@@ -21,7 +21,7 @@ for part in "${parts[@]}"; do
     include=true
     for word in "${blacklist[@]}"; do
 	if echo "$part" | grep -qE "$word"; then
-	    #echo "The path $path contains a blacklisted word: $word"
+	    # echo "The path $path contains a blacklisted word: $word"
 	    include=false
 	fi
     done
@@ -58,6 +58,7 @@ for part in "${parts[@]}"; do
 		export PROVIDER=${ORGANIZATION}-${ID}
 		
 		chain_id=$(curl --ipv4 -m 1 -s -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}' $TEST_URL | jq -r '.result')
+		#echo "$TEST_URL $chain_id" >&2
 		chain_id_decimal=$((16#${chain_id#0x}))
 		export CHAIN=$($BASEPATH/get-shortname.sh $chain_id_decimal)