diff --git a/src/pages/api/users/[id]/usage.ts b/src/pages/api/users/[id]/usage.ts
index 7cb40d61..93dd0553 100644
--- a/src/pages/api/users/[id]/usage.ts
+++ b/src/pages/api/users/[id]/usage.ts
@@ -66,8 +66,8 @@ export default async (
 
     const usage = websiteUsage.reduce(
       (acc, cv) => {
-        acc.websiteEventUsage += cv.websiteEventUsage;
-        acc.eventDataUsage += cv.eventDataUsage;
+        acc.websiteEventUsage += Number(cv.websiteEventUsage);
+        acc.eventDataUsage += Number(cv.eventDataUsage);
 
         return acc;
       },