diff --git a/src/libretro/libretro.c b/src/libretro/libretro.c
index f9b3cfe..aad93bc 100644
--- a/src/libretro/libretro.c
+++ b/src/libretro/libretro.c
@@ -306,12 +306,12 @@ void retro_set_environment(retro_environment_t cb)
 {
    static const struct retro_variable vars[] = {
       { "mame2000-frameskip", "Frameskip ; disabled|auto|threshold" },
-      { "mame2000-frameskip_threshold", "Frameskip Threshold (%); 30|40|50|60" },
-      { "mame2000-frameskip_interval", "Frameskip Interval; 1|2|3|4|5|6|7|8|9" },
-      { "mame2000-skip_disclaimer", "Skip Disclaimer; enabled|disabled" },
-      { "mame2000-show_gameinfo", "Show Game Information; disabled|enabled" },
-      { "mame2000-sample_rate", "Audio Rate (Restart); 32000|11025|22050|32000|44100" },
-      { "mame2000-stereo", "Stereo (Restart); enabled|disabled" },
+      { "mame2000-frameskip_threshold", "FS Threshold (%); 30|40|50|60" },
+      { "mame2000-frameskip_interval", "FS Interval; 1|2|3|4|5|6|7|8|9" },
+      { "mame2000-skip_disclaimer", "Skip Disclaimer; disabled|enabled" },
+      { "mame2000-show_gameinfo", "Show Game Info; disabled|enabled" },
+      { "mame2000-sample_rate", "Snd. Rate (Restart); 11025|22050|32000|44100" },
+      { "mame2000-stereo", "Stereo (Restart); disabled|enabled" },
       { NULL, NULL },
    };
    environ_cb = cb;