diff --git a/chainList.json b/chainList.json
index 9b566505e..8eeff5e89 100644
--- a/chainList.json
+++ b/chainList.json
@@ -263,6 +263,7 @@
       "https://explorer.swellnetwork.io"
     ],
     "superchainLevel": 0,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
@@ -425,6 +426,7 @@
       "https://explorer-sepolia.inkonchain.com"
     ],
     "superchainLevel": 0,
+    "governedByOptimism": true,
     "dataAvailabilityType": "eth-da",
     "parent": {
       "type": "L2",
diff --git a/chainList.toml b/chainList.toml
index 9f7ca578a..b7838b3d8 100644
--- a/chainList.toml
+++ b/chainList.toml
@@ -188,6 +188,7 @@
   rpc = ["https://swell-mainnet.alt.technology"]
   explorers = ["https://explorer.swellnetwork.io"]
   superchain_level = 0
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
@@ -305,6 +306,7 @@
   rpc = ["https://rpc-gel-sepolia.inkonchain.com"]
   explorers = ["https://explorer-sepolia.inkonchain.com"]
   superchain_level = 0
+  governed_by_optimism = true
   data_availability_type = "eth-da"
   [chains.parent]
     type = "L2"
diff --git a/superchain/configs/configs.json b/superchain/configs/configs.json
index c37fee5d1..361d437b6 100644
--- a/superchain/configs/configs.json
+++ b/superchain/configs/configs.json
@@ -692,6 +692,7 @@
           "SequencerRPC": "https://swell-mainnet.alt.technology",
           "Explorer": "https://explorer.swellnetwork.io",
           "SuperchainLevel": 0,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": true,
           "SuperchainTime": null,
           "batch_inbox_address": "0x005dE5857e38dFD703a1725c0900E9C6f24cbdE0",
@@ -2014,6 +2015,7 @@
           "SequencerRPC": "https://rpc-gel-sepolia.inkonchain.com",
           "Explorer": "https://explorer-sepolia.inkonchain.com",
           "SuperchainLevel": 0,
+          "GovernedByOptimism": true,
           "StandardChainCandidate": true,
           "SuperchainTime": 0,
           "batch_inbox_address": "0x004De1914F4f17aC234f5A5Bc8a4072a231d44BF",