diff --git a/CONTRIBUTING b/CONTRIBUTING.md
similarity index 100%
rename from CONTRIBUTING
rename to CONTRIBUTING.md
diff --git a/README.md b/README.md
index 57e09a7c86cf..bc2d3f5da0a5 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,7 @@ For development purposes we test that YDB could be built and run under latest ve
 
 We are glad to welcome new contributors!
 
-1. Please read [contributor's guide](CONTRIBUTING).
+1. Please read [contributor's guide](CONTRIBUTING.md).
 2. We can accept your work to YDB after you have read contributor's license agreement (aka CLA).
 3. Please don't forget to add a note to your pull request, that you agree to the terms of the CLA.