diff --git a/Jenkinsfile.declarative b/Jenkinsfile.declarative
index abb419e..17f38e5 100644
--- a/Jenkinsfile.declarative
+++ b/Jenkinsfile.declarative
@@ -1,5 +1,5 @@
+properties([disallowConcurrentBuilds()])
 pipeline {
-
   agent any
 
   environment {