diff --git a/vars/nebula.groovy b/vars/nebula.groovy
index 88f3f1c..539be15 100644
--- a/vars/nebula.groovy
+++ b/vars/nebula.groovy
@@ -149,7 +149,7 @@ def runInNewVM(Map args) {
         initWithCredentials(urlCredentialsId, userCredentialsId) { client ->
             client.withNewVM(vmTemplate, terminateOnExit) { host ->
 
-                def sshArgs = "-i '${VM_SSH_KEY}' -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
+                def sshArgs = "-i \'${VM_SSH_KEY}\' -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null"
                 
                 // On attend que la connexion SSH soit disponible
                 println "En attente de l'accès SSH..."