diff --git a/README.md b/README.md
index 3590d43..ee2a5b6 100644
--- a/README.md
+++ b/README.md
@@ -39,3 +39,4 @@
 * Code additions are always welcome
 * Please add translations/translation fixes as you see need
 * Change ````FinalVariables.MAX_TABS```` from 5 to 50 to change the Lightning to the paid version
+* DO NOT USE PROGUARD WHEN COMPILING. Hidden methods used will be obfuscated and things like file uploading will not work.