diff --git a/src/main.rs b/src/main.rs
index b3e90c7..743cc56 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,5 @@
+#![forbid(unsafe_code)]
+
 use std::fs::{File, OpenOptions};
 use std::io::{self, Write};