diff --git a/todo.txt b/todo.txt
index d615779..22f3bbb 100644
--- a/todo.txt
+++ b/todo.txt
@@ -3,7 +3,7 @@ many points in name - rc.local.start
 example #!/usr/bin/cppipe
 description - advantages over manual compile
 man
-tips (sigaction SIGCHILD, SIG_IGN, SIG_DFL)
+tips (sigaction SIGCHILD, SIG_IGN, SIG_DFL) condituonal main
  - redirected processes block if their output is not read
 make sure file descriptors are closed when no longer used
 cppipe compile options from tft