diff --git a/include/fmt/format.h b/include/fmt/format.h
index 332b8271..9c104df1 100644
--- a/include/fmt/format.h
+++ b/include/fmt/format.h
@@ -578,7 +578,7 @@ class basic_memory_buffer : private Allocator, public internal::buffer<T> {
       : Allocator(alloc) {
     this->set(store_, SIZE);
   }
-  ~basic_memory_buffer() { deallocate(); }
+  ~basic_memory_buffer() FMT_OVERRIDE { deallocate(); }
 
  private:
   // Move data from other to this buffer.
@@ -658,7 +658,7 @@ class FMT_API format_error : public std::runtime_error {
   format_error& operator=(const format_error&) = default;
   format_error(format_error&&) = default;
   format_error& operator=(format_error&&) = default;
-  ~format_error() FMT_NOEXCEPT;
+  ~format_error() FMT_NOEXCEPT FMT_OVERRIDE;
 };
 
 namespace internal {
@@ -2752,7 +2752,7 @@ class FMT_API system_error : public std::runtime_error {
   system_error& operator=(const system_error&) = default;
   system_error(system_error&&) = default;
   system_error& operator=(system_error&&) = default;
-  ~system_error() FMT_NOEXCEPT;
+  ~system_error() FMT_NOEXCEPT FMT_OVERRIDE;
 
   int error_code() const { return error_code_; }
 };