diff --git a/libs/pbd/pbd/playback_buffer.h b/libs/pbd/pbd/playback_buffer.h
index 1981adcdd8..a7013b2110 100644
--- a/libs/pbd/pbd/playback_buffer.h
+++ b/libs/pbd/pbd/playback_buffer.h
@@ -127,14 +127,6 @@ public:
 		return cnt;
 	}
 
-	/* read-thead */
-	void read_flush ()
-	{
-		SpinLock sl (_reservation_lock);
-		g_atomic_int_set (&read_idx, g_atomic_int_get (&write_idx));
-		g_atomic_int_set (&reserved, 0);
-	}
-
 	/* read-thead */
 	guint decrement_read_ptr (guint cnt)
 	{