diff --git a/lib/methods.js b/lib/methods.js
index e0d3363..7e03f3b 100644
--- a/lib/methods.js
+++ b/lib/methods.js
@@ -94,7 +94,32 @@ module.exports = function (FQ) {
 
 		this.execQueue();
 	};
+	
+	/**
+	 * Asynchronously append data to file
+	 * https://nodejs.org/docs/v0.10.15/api/fs.html#fs_fs_appendfile_filename_data_options_callback
+	 */
+	FQ.prototype.appendFile = function(filename, data, options, callback) {
+
+		if(!callback) {
+			callback = options;
+			options = null;
+		}
+
+		this.addToQueue(function(fs, cb) {
 
+			if(options) {
+				fs.appendFile(filename, data, options, cb);
+				return;
+			}
+
+			fs.appendFile(filename, data, cb);
+
+ 		}, callback);
+
+		this.execQueue();
+	};
+	
 	/**
 	 * Asynchronous stat
 	 * http://nodejs.org/docs/v0.10.15/api/fs.html#fs_fs_stat_path_callback
@@ -213,4 +238,4 @@ module.exports = function (FQ) {
 		return writeStream;
 	};
 
-};
\ No newline at end of file
+};