diff --git a/README.md b/README.md
index e9ebfdc3..dcf10a29 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,8 @@
 [![GitHub issues](https://img.shields.io/github/issues/pezy/CppPrimer.svg)](https://github.com/pezy/CppPrimer/issues)
 [![GitHub license](https://img.shields.io/badge/license-CC0-blue.svg)](https://raw.githubusercontent.com/pezy/Cpp-Primer/master/LICENSE)
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+[![Slack](https://img.shields.io/badge/Slack-join-brightgreen.svg)](https://join.slack.com/t/cppprimers/shared_invite/enQtMjg4NzQ4NjU4NzczLTZiNWMxOGM0MDRjNzNkMGJhNjYxZjQ3NGFmYmRhZWVlYTI4YTBhMTE3NDhlYzNlYTM3OTA3MzU2MjhhYTE2YWI)
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 ## Notes