diff --git a/Components/9918/Implementation/YamahaCommands.hpp b/Components/9918/Implementation/YamahaCommands.hpp
index ebaf85dde..6fd3e7cdc 100644
--- a/Components/9918/Implementation/YamahaCommands.hpp
+++ b/Components/9918/Implementation/YamahaCommands.hpp
@@ -91,6 +91,7 @@ struct Command {
 	/// Current command parameters.
 	CommandContext &context;
 	Command(CommandContext &context) : context(context) {}
+	virtual ~Command() {}
 
 	/// @returns @c true if all output from this command is done; @c false otherwise.
 	virtual bool done() = 0;