diff --git a/libs/gtkmm2ext/gtkmm2ext/actions.h b/libs/gtkmm2ext/gtkmm2ext/actions.h
index 8eae2eeb6b..09d5df1ce2 100644
--- a/libs/gtkmm2ext/gtkmm2ext/actions.h
+++ b/libs/gtkmm2ext/gtkmm2ext/actions.h
@@ -55,6 +55,7 @@ namespace ActionManager {
 	class LIBGTKMM2EXT_API MissingActionException : public std::exception {
 	  public:
 		MissingActionException (std::string const & str);
+		~MissingActionException() throw() {}
 		const char *what() const throw();
 	  private:
 		std::string missing_action_name;