diff --git a/lib/base/io-engine.hpp b/lib/base/io-engine.hpp
index 466927d10..e7cd63096 100644
--- a/lib/base/io-engine.hpp
+++ b/lib/base/io-engine.hpp
@@ -187,6 +187,11 @@ public:
 		));
 	}
 
+	Timeout(const Timeout&) = delete;
+	Timeout(Timeout&&) = delete;
+	Timeout& operator=(const Timeout&) = delete;
+	Timeout& operator=(Timeout&&) = delete;
+
 	~Timeout()
 	{
 		Cancel();