diff --git a/README.md b/README.md
index 78fd120..3f4978d 100644
--- a/README.md
+++ b/README.md
@@ -72,3 +72,5 @@ See the LICENSE file for details.
 ## Author
 
 grunfink @grunfink@comam.es
+
+Buy grunfink a coffee: https://ko-fi.com/grunfink