diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7a8634f468aa5fe1a1b459638805e0e5b4d1c6f7..4dca00c09adf2a66a816480a3f528cb3787be6f7 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,6 +12,8 @@ We want to make contributing to this project as easy and transparent as possible
       * This decision was made for the license reasons.
       * The Continuous Integration will reject your merge request.
    - All merge requests SHALL have `develop` branch as target branch.
+   - All merge requests SHALL have source branch names that SHALL not contain the `/` character.
+      * We are using a `docker` registry scheme and the image names are based on the source branch name.
 
 ## Coding Styles ##