diff --git a/src/sound/snd_adlibgold.c b/src/sound/snd_adlibgold.c
index ddbdca8f7..5d435f61e 100644
--- a/src/sound/snd_adlibgold.c
+++ b/src/sound/snd_adlibgold.c
@@ -940,10 +940,10 @@ static const device_config_t adgold_config[] =
                 "gameport", "Enable Game port", CONFIG_BINARY, "", 1
         },
         {
-				"surround", "Surround module", CONFIG_BINARY, "", 1
+                "surround", "Surround module", CONFIG_BINARY, "", 1
         },
         {
-				"receive_input", "Receive input (MIDI)", CONFIG_BINARY, "", 1
+                "receive_input", "Receive input (MIDI)", CONFIG_BINARY, "", 1
         },
         {
                 "", "", -1