diff --git a/INSTALL.md b/INSTALL.md
index e83ad664..8ac4cf24 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -9,6 +9,7 @@ You need at least PHP, [Composer](https://getcomposer.org/) and the `php-mcrypt`
 3. [Configuring a database!](#configuring-a-database)
 	1. [Running database migrations](#running-database-migrations)
 4. [Apache setup](#apache)
+5. [Environment detection](#environment-detection)
 
 ## Get a copy!
 
@@ -158,3 +159,7 @@ Next we add a lookup on our `HOSTS` file (if we're not serving Cachet externally
 ```
 
 Restart Apache and you're done!
+
+## Environment Detection
+
+If you're deploying into production you'll want to create an environmental variable as `ENV=production`. In the instance where the variable isn't defined, Cachet will think that it's `local`.
diff --git a/README.md b/README.md
index 5c81e65f..f4619d8a 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,8 @@ See the [INSTALL.md](/INSTALL.md) document for more information. If you'd like t
 
 [Deploying to Heroku](/INSTALL.md#deploy-to-heroku) requires one-click to get started and no knowledge of PHP or Laravel afterwards.
 
+If you're deploying into production you'll want to create an environmental variable as `ENV=production`. In the instance where the variable isn't defined, Cachet will think that it's `local`.
+
 # Looking to contribute?
 
 Are you looking to help out and contribute towards Cachet, awesome! There is a lot to do before the [first milestone](https://github.com/jbrooksuk/Cachet/milestones/First%20Release) is reached, including: