diff --git a/ci/build.Jenkinsfile b/ci/build.Jenkinsfile
index 4492619..a016452 100644
--- a/ci/build.Jenkinsfile
+++ b/ci/build.Jenkinsfile
@@ -20,18 +20,26 @@ pipeline {
 
   stages {
 
-    stage("Clean Workspace") {
+    stage("Check Tag") {
+      when {
+        not {
+          buildingTag()
+        }
+      }
       steps {
-        deleteDir()
+        script {
+          currentBuild.result = 'NOT_BUILT'
+          error("⚠️  Pipeline uniquement déclenchée sur les tags. Aucun tag détecté.")
+        }
       }
     }
 
-    stage("Only Tags Build") {
+    stage("Clean Workspace") {
       when {
         buildingTag()
       }
       steps {
-        echo "Build déclenché par tag : ${TAG_NAME}"
+        deleteDir()
       }
     }