diff --git a/null_sink.go b/null_sink.go
index 36f081c..a4b6b62 100644
--- a/null_sink.go
+++ b/null_sink.go
@@ -12,3 +12,5 @@ func (s nullSink) FlushCounter(name string, value uint64) {}
 func (s nullSink) FlushGauge(name string, value uint64) {}
 
 func (s nullSink) FlushTimer(name string, value float64) {}
+
+func (s nullSink) Flush() {}