diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 5781d04..6262231 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,6 +8,8 @@ Unfortunately, not every library/tool/framework can be considered. The aim of th
 
 (b) absolutely unique in its approach and function
 
+Self-promotion is frowned upon and will be reviewed critically but the suggestion will of course be approved if the criteria match.
+
 If a certain entry does not get accepted, you should first look if there has been a discussion before. These discussions are in the issue section and normally marked with the question tag. If there hasn't been such a topic, you are free to create a new issue tagged as question.