diff --git a/utils/Function.h b/utils/Function.h
index c0e81b135..6940be880 100644
--- a/utils/Function.h
+++ b/utils/Function.h
@@ -15,7 +15,11 @@ namespace detail
 
 constexpr size_t calculateStorageSize()
 {
+#if defined(__aarch64__)
+    constexpr size_t minSize = 22 * sizeof(uint64_t);
+#else
     constexpr size_t minSize = 20 * sizeof(uint64_t);
+#endif
     // Ensure EngineFunction has a size multiple of alignof(std::max_align_t) to not waste space with paddings
     // when we have a contiguous containers with EngineFunction
     constexpr size_t alignedSpace =