diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 3d0b5c4f30..73886f3f7e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -16,8 +16,6 @@ Please refer to the steps described on our website: [How to contribute to OAI](h
       * 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 ##
 
diff --git a/ci-scripts/Jenkinsfile-GitLab-Container b/ci-scripts/Jenkinsfile-GitLab-Container
index 93b3d38d75..2f94a3e318 100644
--- a/ci-scripts/Jenkinsfile-GitLab-Container
+++ b/ci-scripts/Jenkinsfile-GitLab-Container
@@ -589,6 +589,7 @@ def triggerCN5GSlaveJob (jobName, gitlabStatusName) {
   if ("MERGE".equals(env.gitlabActionType)) {
     shortenShaOne = sh returnStdout: true, script: 'git log -1 --pretty=format:"%h" --abbrev=8 ' + env.gitlabMergeRequestLastCommit
     shortenShaOne = shortenShaOne.trim()
+    branchName = env.gitlabSourceBranch.replaceAll("/", "-").trim()
     fullRanTag = 'porcepix.sboai.cs.eurecom.fr/oai-gnb:' + env.gitlabSourceBranch + '-' + shortenShaOne
   } else {
     shortenShaOne = sh returnStdout: true, script: 'git log -1 --pretty=format:"%h" --abbrev=8 ' + env.GIT_COMMIT