diff --git a/Source/OpenTK/OpenAL/History.txt b/Source/OpenTK/OpenAL/History.txt
index f3224de3..fe208758 100644
--- a/Source/OpenTK/OpenAL/History.txt
+++ b/Source/OpenTK/OpenAL/History.txt
@@ -35,6 +35,6 @@ Todo:
 
 - Identify: AL_FILTER_FIRST_PARAMETER, AL_FILTER_LAST_PARAMETER
             AL_EFFECT_FIRST_PARAMETER, AL_EFFECT_LAST_PARAMETER
-- use [MarshalAs(UnmanagedType)] attribute, instead of bool? investigate
+
 - AL.BindBuffer helper function ala GL.BindBuffer? (Wraps AL.Source, better consistency)
-- change all "name" into "handle" to avoid confusion?
\ No newline at end of file
+- change all "name" into "handle" to avoid confusion?