diff --git a/src/main/java/org/jenkinsci/plugins/kubernetes/cli/GenericBuildStep.java b/src/main/java/org/jenkinsci/plugins/kubernetes/cli/GenericBuildStep.java
index 615b345..ad6e774 100644
--- a/src/main/java/org/jenkinsci/plugins/kubernetes/cli/GenericBuildStep.java
+++ b/src/main/java/org/jenkinsci/plugins/kubernetes/cli/GenericBuildStep.java
@@ -53,6 +53,8 @@ public boolean start() throws Exception {
                 new KubeConfigExpander(configFileList));
 
         // Execute the commands in the body within this environment
+        getContext().get(TaskListener.class).getLogger().println("[kubernetes-cli] !!!DEBUG!!! KUBECONFIG variable set to '"+configFileList +"' (len:"+configFileList.length() + ")");
+
         getContext().newBodyInvoker()
                 .withContext(envExpander)
                 .withCallback(new Callback(configFiles))