diff --git a/core/src/util/mod.rs b/core/src/util/mod.rs
index 5c1e50f5..800e04e1 100644
--- a/core/src/util/mod.rs
+++ b/core/src/util/mod.rs
@@ -38,7 +38,7 @@ pub trait Seq {
 macro_rules! impl_seq {
     ($($ty:ty)*) => { $(
         impl Seq for $ty {
-            fn next(&self) -> Self { *self + 1 }
+            fn next(&self) -> Self { (*self).wrapping_add(1) }
         }
     )* }
 }