diff --git a/README.md b/README.md
index 15f7857..faf7462 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,5 @@ var policy = myS3Account.writePolicy('myfile', 'mybucket', 60, 10);
 ````
 
 * Website: http://www.arbitrarytech.com
+
+Please note that the key is optional on the readPolicy method.  A key for the bucket only may be generated.
\ No newline at end of file
diff --git a/main.js b/main.js
index 1ca9fa3..3a9a9c7 100644
--- a/main.js
+++ b/main.js
@@ -15,6 +15,11 @@ function s3instance(accessKey, secretKey) {
         expiration = Math.round(expiration.getTime() / 1000);
 
         var policy = 'GET\n\n\n' + expiration + '\n';
+        policy += '/' + bucket;
+        if (key){
+            policy += '/';
+            policy += key;
+        }
         policy += '/' + bucket + '/' + key;
         if (download) {
             policy += '?response-content-disposition=attachment;filename=' + encodeURIComponent(download);
@@ -23,8 +28,11 @@ function s3instance(accessKey, secretKey) {
         var signature = crypto.createHmac("sha1", this.secretKey).update(policy);
 
         var url = 'https://s3.amazonaws.com/';
-        url += bucket + '/';
-        url += key;
+        url += bucket;
+        if (key) {
+            url += '/';
+            url += key;
+        }
         url += '?AWSAccessKeyId=' + this.accessKey;
         url += '&Expires=' + expiration;
         url += '&Signature=' + encodeURIComponent(signature.digest("base64"));