diff --git a/README.md b/README.md
index 5e94cac9..1823354f 100644
--- a/README.md
+++ b/README.md
@@ -59,6 +59,7 @@ Sherlock: Find Usernames Across Social Networks (Version 0.14.2)
 
 positional arguments:
   USERNAMES             One or more usernames to check with social networks.
+                        Check similar usernames using {%} (replace to '_', '-', '.').
 
 optional arguments:
   -h, --help            show this help message and exit
diff --git a/sherlock/sherlock.py b/sherlock/sherlock.py
index ea65b4b1..4ac9d9f1 100644
--- a/sherlock/sherlock.py
+++ b/sherlock/sherlock.py
@@ -551,7 +551,7 @@ def main():
     parser.add_argument("username",
                         nargs="+", metavar="USERNAMES",
                         action="store",
-                        help="One or more usernames to check with social networks."
+                        help="One or more usernames to check with social networks. Check similar usernames using {%%} (replace to '_', '-', '.')."
                         )
     parser.add_argument("--browse", "-b",
                         action="store_true", dest="browse", default=False,