diff --git a/src/sound/snd_sb.c b/src/sound/snd_sb.c
index f7914a46d..7361d90cd 100644
--- a/src/sound/snd_sb.c
+++ b/src/sound/snd_sb.c
@@ -2341,9 +2341,6 @@ static const device_config_t sb_32_pnp_config[] =
                         {
                                 "None", 0
                         },
-                        {
-                                "512 KB", 512
-                        },
                         {
                                 "2 MB", 2048
                         },