diff --git a/entropy_src.h b/entropy_src.h
index 2e3fb90..c2ba4b7 100644
--- a/entropy_src.h
+++ b/entropy_src.h
@@ -2,7 +2,6 @@
 #define FORTUNA_ENTROPY_SRC_H
 
 #include "event_adder_impl.h"
-#include "event_scheduler_impl.h"
 
 #include <memory>
 
@@ -12,17 +11,16 @@ namespace accumulator {
 class EntropySrc {
 private:
 	std::unique_ptr<EventAdderImpl> ea_impl;
-	std::unique_ptr<EventSchedulerImpl> es_impl;
 
 public:
-	virtual void schedule(accumulator::EventSchedulerImpl scheduler) = 0;
-	virtual void event(accumulator::EventAdderImpl adder) = 0;
+	virtual void event(accumulator::EventAdderImpl& adder) = 0;
 
 	static constexpr const std::size_t max_event_length{32};
 
+	EntropySrc() = default;
 	EntropySrc(const EntropySrc&) = delete;
 	EntropySrc& operator=(const EntropySrc&) = delete;
-	~EntropySrc() noexcept;
+	~EntropySrc() noexcept = default;
 };
 
 } // namespace accumulator