diff --git a/ZCppMain/test.cpp b/ZCppMain/test.cpp
index 28567bd..5efd6a5 100644
--- a/ZCppMain/test.cpp
+++ b/ZCppMain/test.cpp
@@ -1,4 +1,5 @@
 
+#include <iostream>
 #include "ZMainHead.H"