diff --git a/README.md b/README.md
index e45aa7b..aa39beb 100644
--- a/README.md
+++ b/README.md
@@ -15,3 +15,8 @@ C library with collections, strings, exceptions, io...
     ```
 
 ## Usage
+Put this code at the beginning of `main()`
+```
+// tlibc/tlibc.h
+try_fatal_void(tlibc_init());
+```