diff --git a/lib/filesystem.js b/lib/filesystem.js
index 3a4d35d..895fe69 100644
--- a/lib/filesystem.js
+++ b/lib/filesystem.js
@@ -37,7 +37,7 @@ const readFile = (path) => new Promise((resolve, reject) => {
       const buffer = Buffer.alloc(MAX_LENGTH);
       fs.read(fd, buffer, 0, MAX_LENGTH, 0, (_, bytesRead) => {
         resolve(buffer.subarray(0, bytesRead));
-        fs.close(fd);
+        fs.close(fd, () => {});
       });
     }
   });