diff --git a/src/sound/snd_sb.c b/src/sound/snd_sb.c
index 5d49c9a62..6157412ea 100644
--- a/src/sound/snd_sb.c
+++ b/src/sound/snd_sb.c
@@ -2377,6 +2377,9 @@ static const device_config_t sb_32_pnp_config[] =
                         {
                                 "None", 0
                         },
+                        {
+                                "512 KB", 512
+                        },
                         {
                                 "2 MB", 2048
                         },