diff --git a/README.md b/README.md
index d27bcc5..88d81f1 100644
--- a/README.md
+++ b/README.md
@@ -29,7 +29,7 @@ Here's how to get started:
 ```
 usage: sandcastle.py [-h] -t targetStem [-f inputFile]
 
-optional arguments:
+arguments:
   -h, --help            show this help message and exit
   -t targetStem, --target targetStem
                         Select a target stem name (e.g. 'instacart')
diff --git a/sandcastle.py b/sandcastle.py
index 60de9a5..05baaab 100755
--- a/sandcastle.py
+++ b/sandcastle.py
@@ -18,13 +18,13 @@
 parser.add_argument("-t", "--target", dest="targetStem",
                     help="Select a target stem name (e.g. 'instacart')", metavar="targetStem", required="True")
 parser.add_argument("-f", "--file", dest="inputFile",
-                    help="Select a bucket permutation file (default: bucket-names.txt)", default="bucket-names.txt", metavar="inputFile")
+                    help="Optional: select a bucket permutation file (default: bucket-names.txt)", default="bucket-names.txt", metavar="inputFile")
 args = parser.parse_args()
 with open(args.inputFile, 'r') as f: 
     bucketNames = [line.strip() for line in f] 
     lineCount = len(bucketNames)
 print "[*] Commencing enumeration of target '%s', reading %i lines from '%s'." % (args.targetStem, lineCount, f.name)
-# Analyse – standard permutations and special exceptions
+# Enumerate – standard permutations and status code analysis
 for name in bucketNames:
 	r = requests.head("http://%s%s.s3.amazonaws.com" % (args.targetStem, name))
 	if r.status_code != 404: