diff --git a/src/controllers/tanksController.js b/src/controllers/tanksController.js
index 9cf0cb37..2ded7afa 100644
--- a/src/controllers/tanksController.js
+++ b/src/controllers/tanksController.js
@@ -1346,7 +1346,7 @@ exports.totalwaterLevelSum = async (request, reply) => {
     }
   ]);
 
-  const result = waterlevelSum[0]?.totalWaterlevel ?? 0;
+  const result = waterlevelSum[0]?totalWaterlevel : 0;
 
   reply.send({ waterlevelSum: result });
 }