diff --git a/README.md b/README.md
index e9cfc21..7b16d9f 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,7 @@ This version is creating a complete and nice looking image which will be shown o
 * Windows (prefered, i haven't tested it with Linux because i'am Windows user)
 * A running and configured OpenSim region
 * Disabled PHP safe_mode to allow exec commands
+* Optionally a running imagemagick extension in php that supports jpeg2000
 
 If you have trouble setting up the server side, please contact Kubwa, he may or may not help you: