diff --git a/lib/binding.js b/lib/binding.js
index 6801f95..a51b578 100644
--- a/lib/binding.js
+++ b/lib/binding.js
@@ -150,7 +150,7 @@ function Binding(system) {
    * Counter for file descriptors.
    * @type {number}
    */
-  this._counter = -1;
+  this._counter = 0;
 
   const stdin = new FileDescriptor(constants.O_RDWR);
   stdin.setItem(new File.StandardInput());