diff --git a/include/zeus/Global.hpp b/include/zeus/Global.hpp
index 303b33f..e6994ef 100644
--- a/include/zeus/Global.hpp
+++ b/include/zeus/Global.hpp
@@ -16,8 +16,8 @@ using simd_doubles = athena::simd_doubles;
 #endif
 
 template <typename SizeT>
-constexpr void hash_combine_impl(SizeT& seed, SizeT value) {
-  seed ^= value + 0x9e3779b9 + (seed<<6) + (seed>>2);
+constexpr void hash_combine_impl(SizeT& seed, SizeT value) noexcept {
+  seed ^= value + 0x9e3779b9 + (seed << 6) + (seed >> 2);
 }
 } // namespace zeus