diff --git a/extension/memory_allocator/cpu_caching_malloc_allocator.h b/extension/memory_allocator/cpu_caching_malloc_allocator.h
index 9f352c9aaa1..73895c30fa2 100644
--- a/extension/memory_allocator/cpu_caching_malloc_allocator.h
+++ b/extension/memory_allocator/cpu_caching_malloc_allocator.h
@@ -84,7 +84,7 @@ class CPUCachingAllocator : public executorch::runtime::MemoryAllocator {
       size_t size,
       size_t alignment = kCachingAllocatorDefaultAlignment) override;
   void reset() override;
-  ~CPUCachingAllocator();
+  ~CPUCachingAllocator() override;
 };
 
 } // namespace executorch::extension