diff --git a/.changeset/ripe-regions-smoke.md b/.changeset/ripe-regions-smoke.md
new file mode 100644
index 00000000..a3c33cac
--- /dev/null
+++ b/.changeset/ripe-regions-smoke.md
@@ -0,0 +1,5 @@
+---
+"chainlink-deployments-framework": patch
+---
+
+Add legacy env var support for TON
diff --git a/engine/cld/config/env/config.go b/engine/cld/config/env/config.go
index 11c74956..71d2cd58 100644
--- a/engine/cld/config/env/config.go
+++ b/engine/cld/config/env/config.go
@@ -224,8 +224,8 @@ var (
 		"onchain.aptos.deployer_key":                              {"ONCHAIN_APTOS_DEPLOYER_KEY", "APTOS_DEPLOYER_KEY"},
 		"onchain.tron.deployer_key":                               {"ONCHAIN_TRON_DEPLOYER_KEY", "TRON_DEPLOYER_KEY"},
 		"onchain.sui.deployer_key":                                {"ONCHAIN_SUI_DEPLOYER_KEY", "SUI_DEPLOYER_KEY"},
-		"onchain.ton.deployer_key":                                {"ONCHAIN_TON_DEPLOYER_KEY"},
-		"onchain.ton.wallet_version":                              {"ONCHAIN_TON_WALLET_VERSION"},
+		"onchain.ton.deployer_key":                                {"ONCHAIN_TON_DEPLOYER_KEY", "TON_DEPLOYER_KEY"},
+		"onchain.ton.wallet_version":                              {"ONCHAIN_TON_WALLET_VERSION", "TON_WALLET_VERSION"},
 		"offchain.job_distributor.auth.cognito_app_client_id":     {"OFFCHAIN_JD_AUTH_COGNITO_APP_CLIENT_ID", "JD_AUTH_COGNITO_APP_CLIENT_ID"},
 		"offchain.job_distributor.auth.cognito_app_client_secret": {"OFFCHAIN_JD_AUTH_COGNITO_APP_CLIENT_SECRET", "JD_AUTH_COGNITO_APP_CLIENT_SECRET"},
 		"offchain.job_distributor.auth.aws_region":                {"OFFCHAIN_JD_AUTH_AWS_REGION", "JD_AUTH_AWS_REGION"},
diff --git a/engine/cld/config/env/config_test.go b/engine/cld/config/env/config_test.go
index 568deb5f..a365e3c8 100644
--- a/engine/cld/config/env/config_test.go
+++ b/engine/cld/config/env/config_test.go
@@ -115,9 +115,9 @@ var (
 		"JD_GRPC":                           "GRPC2",
 		"OCR_X_SIGNERS":                     "awkward bat",
 		"OCR_X_PROPOSERS":                   "caring deer",
+		"TON_DEPLOYER_KEY":                  "0x123",
+		"TON_WALLET_VERSION":                "V5R1",
 		// These values do not have a legacy equivalent
-		"ONCHAIN_TON_DEPLOYER_KEY":    "0x123",
-		"ONCHAIN_TON_WALLET_VERSION":  "V5R1",
 		"CATALOG_GRPC":                "http://localhost:8080",
 		"CATALOG_AUTH_KMS_KEY_ID":     "123",
 		"CATALOG_AUTH_KMS_KEY_REGION": "us-east-1",