diff --git a/examples/cast/cast.rs b/examples/cast/cast.rs
index cb6b0139e4..4d5f44fb6e 100644
--- a/examples/cast/cast.rs
+++ b/examples/cast/cast.rs
@@ -1,3 +1,6 @@
+// Suppress all warnings from casts which overflow.
+#![allow(overflowing_literals)]
+
 fn main() {
     let decimal = 65.4321_f32;