diff --git a/production/mempool-config.mainnet-lightning.json b/production/mempool-config.mainnet-lightning.json
index a38509983..5bcadc584 100644
--- a/production/mempool-config.mainnet-lightning.json
+++ b/production/mempool-config.mainnet-lightning.json
@@ -45,6 +45,6 @@
     "PORT": 3306,
     "USERNAME": "__MEMPOOL_MAINNET_LIGHTNING_USER__",
     "PASSWORD": "__MEMPOOL_MAINNET_LIGHTNING_PASS__",
-    "PASSWORD": "mempool_mainnet_lightning"
+    "DATABASE": "mempool_mainnet_lightning"
   }
 }