diff --git a/Jenkinsfile b/Jenkinsfile
index c467511f940c9f47f944c837c6ffa29f4e891ddf..474fc1a4071aa68e0f77cd589664c76b5a040b3c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -145,7 +145,7 @@ void deployHelmChart(String helmChartName, String helmChartVersion) {
 }
 
 String validateBranchName(branchName) {
-    int maxLength = 30
+    int maxLength = 18
     if (branchName.length() > maxLength) {
         String originalBranchName = branchName
         branchName = branchName.substring(0, maxLength)