diff --git a/src/main/cpp/tiv.cpp b/src/main/cpp/tiv.cpp
index c471dc5..a3975fb 100644
--- a/src/main/cpp/tiv.cpp
+++ b/src/main/cpp/tiv.cpp
@@ -420,6 +420,7 @@ int main(int argc, char* argv[]) {
   struct winsize w;
   ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
 
+  //If redirect STDOUT to one file
   if(w.ws_col == 0 && w.ws_col == 0)
   ioctl(0, TIOCGWINSZ, &w);