diff --git a/core/algo/threaded_loop.h b/core/algo/threaded_loop.h
index ba9d8af6e5..bfd003679b 100644
--- a/core/algo/threaded_loop.h
+++ b/core/algo/threaded_loop.h
@@ -346,7 +346,7 @@ template <class OuterLoopType> struct ThreadedLoopRunOuter {
     struct PerThread {
       PerThread() = delete;
       PerThread(const PerThread &) = default;
-      PerThread(PerThread &&) = default;
+ noexcept 
       PerThread &operator=(const PerThread &) = delete;
       PerThread &operator=(PerThread &&) = delete;
       Shared &shared;