diff --git a/rust/gigasecond/src/lib.rs b/rust/gigasecond/src/lib.rs
index f846dc9..eb37da7 100644
--- a/rust/gigasecond/src/lib.rs
+++ b/rust/gigasecond/src/lib.rs
@@ -2,6 +2,6 @@ extern crate chrono;
 use chrono::UTC;
 
 pub fn after(input_date: UTC) -> UTC {
-    let utc: lived_for_date = input_date + Duration::seconds(1_000_000_000);
+    let UTC: lived_for_date = input_date + Duration::seconds(1_000_000_000);
 	return lived_for_date;
-}
\ No newline at end of file
+}