diff --git a/include/metall/kernel/manager_kernel_impl.ipp b/include/metall/kernel/manager_kernel_impl.ipp
index f75b3d8c..29b01498 100644
--- a/include/metall/kernel/manager_kernel_impl.ipp
+++ b/include/metall/kernel/manager_kernel_impl.ipp
@@ -94,7 +94,10 @@ void *manager_kernel<chnk_no, chnk_sz>::allocate(
     return nullptr;
   }
   assert(offset >= 0);
+#if !(defined(__has_feature) && __has_feature(thread_sanitizer))
   assert(offset + nbytes <= m_segment_storage.size());
+#endif
+
   return priv_to_address(offset);
 }
 
@@ -114,7 +117,9 @@ void *manager_kernel<chnk_no, chnk_sz>::allocate_aligned(
     return nullptr;
   }
   assert(offset >= 0);
+#if !(defined(__has_feature) && __has_feature(thread_sanitizer))
   assert(offset + nbytes <= m_segment_storage.size());
+#endif
 
   auto *addr = priv_to_address(offset);
   assert((uint64_t)addr % alignment == 0);