diff --git a/server/server/api/v1/client/chunk.get.ts b/server/server/api/v1/client/chunk.get.ts
index 21c69dcf..1277a997 100644
--- a/server/server/api/v1/client/chunk.get.ts
+++ b/server/server/api/v1/client/chunk.get.ts
@@ -56,7 +56,7 @@ export default defineEventHandler(async (h3) => {
       statusMessage: "Invalid chunk index",
     });
 
-  const gameReadStream = fs.createReadStream(gameFile, { start, end });
+  const gameReadStream = fs.createReadStream(gameFile, { start, end: end - 1 }); // end needs to be offset by 1
 
   return sendStream(h3, gameReadStream);
 });