diff --git a/Using-the-MySQL-Backend.md b/Using-the-MySQL-Backend.md
index 11b9932..3a1cef6 100644
--- a/Using-the-MySQL-Backend.md
+++ b/Using-the-MySQL-Backend.md
@@ -6,6 +6,18 @@ To run the binary or container ensure the ```DATABASE_URL``` environment variabl
 ```
 DATABASE_URL=mysql://[[user]:[password]@]host[:port][/database]
 ```
+If your password contains special characters, you will need to use percentage encoding.
+
+{| cellpadding="6px" border=1 style="border:1px solid #C0C0C0; border-collapse:collapse; background-color:white;" class="wikitable"
+|+Reserved characters after percent-encoding
+|-
+| <code>[[exclamation mark|!]]</code> || <code>[[number sign|#]]</code> || <code>[[dollar sign|$]]</code> || <code>[[Percent sign|%]]</code> || <code>[[ampersand|&]]</code> || <code>[[apostrophe (mark)|']]</code> || <code>[[parenthesis|(]]</code> || <code>[[parenthesis|)]]</code> || <code>[[asterisk|<nowiki>*</nowiki>]]</code> || <code>[[plus sign|+]]</code> || <code>[[Comma|,]]</code> || <code>[[slash (punctuation)|/]]</code> || <code>[[colon (punctuation)|:]]</code> || <code>[[semicolon|;]]</code> || <code>[[equal sign|=]]</code> || <code>[[question mark|?]]</code> || <code>[[@]]</code> || <code>[[square_bracket|[]]</code> || <code>[[square_bracket|<nowiki>]</nowiki>]]</code>
+|-
+| <code>%21</code> || <code>%23</code> || <code>%24</code> || <code>%25</code> || <code>%26</code> || <code>%27</code> || <code>%28</code> || <code>%29</code> || <code>%2A</code> || <code>%2B</code> || <code>%2C</code> || <code>%2F</code> || <code>%3A</code> || <code>%3B</code> || <code>%3D</code>|| <code>%3F</code> || <code>%40</code> || <code>%5B</code> || <code>%5D</code>
+|}
+
+A complete list of codes can be found on [Wikipedia page for percent encoding](https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding_reserved_characters)
+
 **Example using Docker:**
 ```
 # Start a mysql container