diff --git a/lightning-backend/mempool-config.sample.json b/lightning-backend/mempool-config.sample.json
index 9402ff2c2..30f749040 100644
--- a/lightning-backend/mempool-config.sample.json
+++ b/lightning-backend/mempool-config.sample.json
@@ -17,7 +17,7 @@
     "FACILITY": "local7"
   },
   "LN_NODE_AUTH": {
-    "TSL_CERT_PATH": "",
+    "TLS_CERT_PATH": "",
     "MACAROON_PATH": ""
   },
   "CORE_RPC": {
diff --git a/lightning-backend/src/api/lightning/lnd/lnd-api.ts b/lightning-backend/src/api/lightning/lnd/lnd-api.ts
index 3388a04b3..562d3f663 100644
--- a/lightning-backend/src/api/lightning/lnd/lnd-api.ts
+++ b/lightning-backend/src/api/lightning/lnd/lnd-api.ts
@@ -9,7 +9,7 @@ class LndApi implements AbstractLightningApi {
   private lnd: any;
   constructor() {
     try {
-      const tsl = fs.readFileSync(config.LN_NODE_AUTH.TSL_CERT_PATH).toString('base64');
+      const tsl = fs.readFileSync(config.LN_NODE_AUTH.TLS_CERT_PATH).toString('base64');
       const macaroon = fs.readFileSync(config.LN_NODE_AUTH.MACAROON_PATH).toString('base64');
 
       const { lnd } = lnService.authenticatedLndGrpc({
diff --git a/lightning-backend/src/config.ts b/lightning-backend/src/config.ts
index d2edad180..25893beba 100644
--- a/lightning-backend/src/config.ts
+++ b/lightning-backend/src/config.ts
@@ -19,7 +19,7 @@ interface IConfig {
     FACILITY: string;
   };
   LN_NODE_AUTH: {
-    TSL_CERT_PATH: string;
+    TLS_CERT_PATH: string;
     MACAROON_PATH: string;
   };
   CORE_RPC: {
@@ -57,7 +57,7 @@ const defaults: IConfig = {
     'FACILITY': 'local7'
   },
   'LN_NODE_AUTH': {
-    'TSL_CERT_PATH': '',
+    'TLS_CERT_PATH': '',
     'MACAROON_PATH': '',
   },
   'CORE_RPC': {