diff --git a/src/filesystem/interface.js b/src/filesystem/interface.js
index a2ad302..c00c381 100644
--- a/src/filesystem/interface.js
+++ b/src/filesystem/interface.js
@@ -82,7 +82,6 @@ define(function(require) {
     fs.stdin = STDIN;
     fs.stdout = STDOUT;
     fs.stderr = STDERR;
-    fs.firstFD = FIRST_DESCRIPTOR;
 
     // Safely expose the list of open files and file
     // descriptor management functions
diff --git a/tests/spec/fs.open.spec.js b/tests/spec/fs.open.spec.js
index 3b8b0ec..45d9098 100644
--- a/tests/spec/fs.open.spec.js
+++ b/tests/spec/fs.open.spec.js
@@ -82,9 +82,7 @@ define(["Filer", "util"], function(Filer, util) {
 
       fs.open('/file1', 'w+', function(error, fd) {
         if(error) throw error;
-          expect(error).not.to.exist;
-          expect(fd).to.be.a('number');
-          expect(fd).to.equal(firstFD);
+        expect(fd).to.equal(firstFD);
         done();
       });
     });