diff --git a/wildduck_exporter.py b/wildduck_exporter.py
index 17aed4e..4c3cb7d 100755
--- a/wildduck_exporter.py
+++ b/wildduck_exporter.py
@@ -3,9 +3,9 @@ import os
 from motor.motor_asyncio import AsyncIOMotorClient
 from sanic import Sanic, response, exceptions
 
-MONGO_URI = os.getenv("MONGO_URI")
-if not MONGO_URI:
-    raise ValueError("No MONGO_URI specified")
+MONGODB_HOST = os.getenv("MONGODB_HOST")
+if not MONGODB_HOST:
+    raise ValueError("No MONGODB_HOST specified")
 
 PROMETHEUS_BEARER_TOKEN = os.getenv("PROMETHEUS_BEARER_TOKEN")
 if not PROMETHEUS_BEARER_TOKEN:
@@ -16,7 +16,7 @@ app = Sanic("exporter")
 
 @app.listener("before_server_start")
 async def setup_db(app, loop):
-    app.ctx.db = AsyncIOMotorClient(MONGO_URI).get_default_database()
+    app.ctx.db = AsyncIOMotorClient(MONGODB_HOST).get_default_database()
 
 
 async def wrap(i, prefix="wildduck_"):