diff --git a/Readme.md b/Readme.md
index 8d839df..119bc50 100644
--- a/Readme.md
+++ b/Readme.md
@@ -61,7 +61,7 @@ var deps2 = paperwork('styles.scss');
 Supported options:
 
 * `includeCore`: (default: true) set to `false` to exclude core Node dependencies from the list of dependencies.
-* `fs`: (default: undefined) set to an alternative `fs` implementation that will be used to read the file path.
+* `fileSystem`: (default: undefined) set to an alternative `fs` implementation that will be used to read the file path.
 * You may also pass detective-specific configuration like you would to `precinct(content, options)`.
 
 #### CLI
diff --git a/index.js b/index.js
index 23b3213..21a1d97 100644
--- a/index.js
+++ b/index.js
@@ -130,7 +130,7 @@ function assign(o1, o2) {
  * @param {String} filename
  * @param {Object} [options]
  * @param {Boolean} [options.includeCore=true] - Whether or not to include core modules in the dependency list
- * @param {Object} [options.fs=undefined] - An alternative fs implementation to use for reading the file path.
+ * @param {Object} [options.fileSystem=undefined] - An alternative fs implementation to use for reading the file path.
  * @return {String[]}
  */
 precinct.paperwork = function(filename, options) {
@@ -138,7 +138,9 @@ precinct.paperwork = function(filename, options) {
     includeCore: true
   }, options || {});
 
-  var fileSystem = options.fs || fs;
+  // Note: released with options.fs but intended options.fileSystem for consistency in the community
+  // TODO: Remove options.fs in the next major version update
+  var fileSystem = options.fileSystem || options.fs || fs;
   var content =  fileSystem.readFileSync(filename, 'utf8');
   var ext = path.extname(filename);
   var type;
diff --git a/test/index.js b/test/index.js
index 68e440a..1806ded 100644
--- a/test/index.js
+++ b/test/index.js
@@ -152,7 +152,7 @@ describe('node-precinct', function() {
   });
 
   describe('paperwork', function() {
-    it('uses fs from options if provided', function() {
+    it('uses fileSystem from options if provided', function() {
       var fsMock = {
         readFileSync: function(path, encoding) {
           assert.equal(path, '/foo.js');
@@ -161,7 +161,7 @@ describe('node-precinct', function() {
       };
 
       var options = {
-        fs: fsMock
+        fileSystem: fsMock
       };
       var results = precinct.paperwork('/foo.js', options);
       assert.equal(results.length, 1);