diff --git a/trdlocal.h b/trdlocal.h
index 92d244a0..cfc5a532 100644
--- a/trdlocal.h
+++ b/trdlocal.h
@@ -28,7 +28,7 @@ public:
 	};
 
 	ThreadLocalStorage();
-	~ThreadLocalStorage();
+	~ThreadLocalStorage() CRYPTOPP_THROW;
 
 	void SetValue(void *value);
 	void *GetValue() const;