diff --git a/plugin.sh b/plugin.sh
index dc00ab6..e6f48a6 100755
--- a/plugin.sh
+++ b/plugin.sh
@@ -51,7 +51,9 @@ run_docker_cp() {
   tar cf - $CD $PLUGIN_SOURCE | docker -H "$REMOTE_DOCKER_HOST" cp - $CONTAINER:$PLUGIN_DEST
   
   if [ -n "$PLUGIN_EXEC" ]; then
+    echo "--- start exec ---"
     docker -H "$REMOTE_DOCKER_HOST" exec "$CONTAINER" sh -c "$PLUGIN_EXEC"
+    echo "--- end exec ---"
   fi
 
   echo "--- end deploy ---"