diff --git a/README.md b/README.md
index 903d75c..b214b7b 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # letsencrypt.sh [![Build Status](https://travis-ci.org/lukas2511/letsencrypt.sh.svg?branch=master)](https://travis-ci.org/lukas2511/letsencrypt.sh)
 
-[![Donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_SM.gif)]( )
+[![Donate](https://www.paypalobjects.com/en_US/i/btn/btn_donate_SM.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=EL9BQ5FQGG73Y)
 
 This is a client for signing certificates with an ACME-server (currently only provided by letsencrypt) implemented as a relatively simple bash-script.