diff --git a/apps/explorer/.env.mainnet-mirror b/apps/explorer/.env.mainnet-mirror
index 1299cb5cf..2736dc286 100644
--- a/apps/explorer/.env.mainnet-mirror
+++ b/apps/explorer/.env.mainnet-mirror
@@ -4,7 +4,7 @@ NX_TENDERMINT_WEBSOCKET_URL=wss://be.mainnet-mirror.vega.rocks/websocket
 NX_SENTRY_DSN=https://4b8c8a8ba07742648aa4dfe1b8d17e40@o286262.ingest.sentry.io/5882996
 NX_VEGA_CONFIG_URL=https://raw.githubusercontent.com/vegaprotocol/networks-internal/main/mainnet-mirror/vegawallet-mainnet-mirror.toml
 NX_VEGA_URL=https://api.mainnet-mirror.vega.rocks/graphql
-NX_VEGA_ENV=MAINNET-MIRROR
+NX_VEGA_ENV=MAINNET_MIRROR
 NX_BLOCK_EXPLORER=https://be.mainnet-mirror.vega.rocks/rest
 NX_ETHERSCAN_URL=https://sepolia.etherscan.io
 NX_VEGA_GOVERNANCE_URL=https://governance.mainnet-mirror.vega.rocks
diff --git a/apps/governance/.env.mainnet-mirror b/apps/governance/.env.mainnet-mirror
index 711cfe742..ea22e38a6 100644
--- a/apps/governance/.env.mainnet-mirror
+++ b/apps/governance/.env.mainnet-mirror
@@ -1,8 +1,8 @@
 # App configuration variables
-NX_VEGA_ENV=MAINNET-MIRROR
+NX_VEGA_ENV=MAINNET_MIRROR
 NX_VEGA_CONFIG_URL=https://raw.githubusercontent.com/vegaprotocol/networks-internal/main/mainnet-mirror/vegawallet-mainnet-mirror.toml
 NX_VEGA_URL=https://api.mainnet-mirror.vega.rocks/graphql
-NX_VEGA_NETWORKS='{"DEVNET":"https://dev.governance.vega.xyz","TESTNET":"https://governance.fairground.wtf","MAINNET":"https://governance.vega.xyz","MAINNET-MIRROR":"https://governance.mainnet-mirror.vega.rocks","STAGNET1":"https://trading.stagnet1.vega.rocks"}'
+NX_VEGA_NETWORKS='{"DEVNET":"https://dev.governance.vega.xyz","TESTNET":"https://governance.fairground.wtf","MAINNET":"https://governance.vega.xyz","MAINNET_MIRROR":"https://governance.mainnet-mirror.vega.rocks","STAGNET1":"https://trading.stagnet1.vega.rocks"}'
 NX_ETHEREUM_PROVIDER_URL=https://sepolia.infura.io/v3/4f846e79e13f44d1b51bbd7ed9edefb8
 NX_ETHERSCAN_URL=https://sepolia.etherscan.io
 NX_GITHUB_FEEDBACK_URL=https://github.com/vegaprotocol/feedback/discussions
diff --git a/apps/governance/src/config/env.ts b/apps/governance/src/config/env.ts
index 9bdbe2e21..c716f1063 100644
--- a/apps/governance/src/config/env.ts
+++ b/apps/governance/src/config/env.ts
@@ -25,7 +25,7 @@ export const ContractAddresses: {
     claimAddress: customClaimAddress ?? '0x0',
     lockedAddress: customLockedAddress ?? '0x0',
   },
-  'MAINNET-MIRROR': {
+  MAINNET_MIRROR: {
     claimAddress: '0x8Cef746ab7C83B61F6461cC92882bD61AB65a994', // TODO not deployed to this env, but random address so app doesn't error
     lockedAddress: '0x0', // TODO not deployed to this env
   },
diff --git a/apps/trading/.env.mainnet-mirror b/apps/trading/.env.mainnet-mirror
index cb92b542d..2198709da 100644
--- a/apps/trading/.env.mainnet-mirror
+++ b/apps/trading/.env.mainnet-mirror
@@ -3,9 +3,9 @@ NX_ETHERSCAN_URL=https://sepolia.etherscan.io
 NX_GITHUB_FEEDBACK_URL=https://github.com/vegaprotocol/feedback/discussions
 NX_SENTRY_DSN=https://2ffce43721964aafa78277c50654ece4@o286262.ingest.sentry.io/6300613
 NX_VEGA_CONFIG_URL=https://raw.githubusercontent.com/vegaprotocol/networks-internal/main/mainnet-mirror/vegawallet-mainnet-mirror.toml
-NX_VEGA_ENV=MAINNET-MIRROR
+NX_VEGA_ENV=MAINNET_MIRROR
 NX_VEGA_EXPLORER_URL=https://explorer.mainnet-mirror.vega.rocks
-NX_VEGA_NETWORKS={\"MAINNET\":\"https://console.vega.xyz\",\"TESTNET\":\"https://console.fairground.wtf\",\"STAGNET1\":\"https://trading.stagnet1.vega.rocks\",\"MAINNET-MIRROR\":\"https://trading.mainnet-mirror.vega.rocks\"}
+NX_VEGA_NETWORKS={\"MAINNET\":\"https://console.vega.xyz\",\"TESTNET\":\"https://console.fairground.wtf\",\"STAGNET1\":\"https://trading.stagnet1.vega.rocks\",\"MAINNET_MIRROR\":\"https://trading.mainnet-mirror.vega.rocks\"}
 NX_VEGA_TOKEN_URL=https://governance.mainnet-mirror.vega.rocks
 NX_VEGA_WALLET_URL=http://localhost:1789
 NX_VEGA_DOCS_URL=https://docs.vega.xyz/mainnet
diff --git a/libs/environment/src/types.ts b/libs/environment/src/types.ts
index d542074c6..91f0e78ca 100644
--- a/libs/environment/src/types.ts
+++ b/libs/environment/src/types.ts
@@ -4,7 +4,7 @@ import type { envSchema } from './utils/validate-environment';
 
 export enum Networks {
   VALIDATOR_TESTNET = 'VALIDATOR_TESTNET',
-  MAINNET_MIRROR = 'MAINNET-MIRROR',
+  MAINNET_MIRROR = 'MAINNET_MIRROR',
   CUSTOM = 'CUSTOM',
   TESTNET = 'TESTNET',
   STAGNET1 = 'STAGNET1',
diff --git a/libs/environment/src/utils/validate-environment.ts b/libs/environment/src/utils/validate-environment.ts
index f197664c8..280b4d563 100644
--- a/libs/environment/src/utils/validate-environment.ts
+++ b/libs/environment/src/utils/validate-environment.ts
@@ -2,7 +2,7 @@ import z from 'zod';
 
 export enum Networks {
   VALIDATOR_TESTNET = 'VALIDATOR_TESTNET',
-  MAINNET_MIRROR = 'MAINNET-MIRROR',
+  MAINNET_MIRROR = 'MAINNET_MIRROR',
   CUSTOM = 'CUSTOM',
   TESTNET = 'TESTNET',
   STAGNET1 = 'STAGNET1',