diff --git a/Jenkinsfile b/Jenkinsfile
index 9c36bae..3c1a787 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,6 +1,7 @@
 def projects2artifacts = [:]
 def artifacts2projects = [:]
 def modules2deps = [:]
+def alreadyInTheTree = []
 def inputProject = params.jenkins_project
 def report = [:]
 report['project'] = inputProject
@@ -54,7 +55,7 @@ pipeline {
                     report['downstream_modules']['L1'] = [:]
                     projects2artifacts[inputProject].each { a ->
                          if (a.split(':').length > 1) { //skip the parent (only groupId)
-                            report = analyzeDependency(modules2deps, artifacts2projects, report, a, 1) }
+                            report = analyzeDependency(modules2deps, alreadyInTheTree, artifacts2projects, report, a, 1) }
                          }
                 }
             }
@@ -79,27 +80,34 @@ def findDownstreamDependencies(modules2deps, artifact) {
 }
 
 //build the report of the given dependency, go recursive on its dependencies
-def analyzeDependency(modules2deps, artifacts2projects, report, artifact, depth) {
+def analyzeDependency(modules2deps, alreadyInTheTree, artifacts2projects, report, artifact, depth) {
     def level = "L${depth}"
-    report['downstream_modules'][level][artifact] = ['dependencies': [], 'projects': []]
+    def downdeps = findDownstreamDependencies(modules2deps, artifact)
+    def skipTree = !alreadyInTheTree.contains(artifact)
+    if (!skipTree) {
+        report['downstream_modules'][level][artifact] = ['dependencies': [], 'projects': []]
 
-    // get all downstream dependencies
-    report['downstream_modules'][level][artifact]['dependencies'].addAll(findDownstreamDependencies(modules2deps, artifact))
-    //println "${artifact} is used by ${report['downstream_modules'][level][artifact]['dependencies']}"
+        // get all downstream dependencies
+        report['downstream_modules'][level][artifact]['dependencies'].addAll(downdeps)
+        //println "${artifact} is used by ${report['downstream_modules'][level][artifact]['dependencies']}"
 
-    // add the project that builds the artifact
-    report['downstream_modules'][level][artifact]['projects'] << artifacts2projects[artifact]
-    report['downstream_projects'] << artifacts2projects[artifact]
+        // add the project that builds the artifact
+        report['downstream_modules'][level][artifact]['projects'] << artifacts2projects[artifact]
+        report['downstream_projects'] << artifacts2projects[artifact]
+        alreadyInTheTree << artifact
+    }
 
     // then we look for the projects that build the downstream dependencies and finally we go recursive
-    if (report['downstream_modules'][level][artifact]['dependencies']) {
+    if (downdeps) {
         def nextDepth = ++depth
         report['downstream_modules']["L${nextDepth}"] = [:]
-        report['downstream_modules'][level][artifact]['dependencies'].each { d ->
-            report['downstream_modules'][level][artifact]['projects'] << artifacts2projects[d]
-            report['downstream_projects'] << artifacts2projects[d]
+        downdeps.each { d ->
+            if (!skipTree) {
+                report['downstream_modules'][level][artifact]['projects'] << artifacts2projects[d]
+                report['downstream_projects'] << artifacts2projects[d]
+            }
             // go recursive
-            analyzeDependency(modules2deps, artifacts2projects, report, d, nextDepth)
+            analyzeDependency(modules2deps, alreadyInTheTree, artifacts2projects, report, d, nextDepth)
         }
     }
     report