typo fix

diff --git a/doc/sound.txt b/doc/sound.txt
index b0bc64fa91048f530fb778a8e9602338fe2c43bc..3b42b4c4eeb955b7d6748b7c679a8f70b6856a18 100644 (file)
--- a/doc/sound.txt
+++ b/doc/sound.txt
@@ -230,7 +230,7 @@ assign_soundlib(soundlib_identifier)
 
 activate_chosen_soundlib(void)
 
-    -- If a soundlib is already active, indicated by gc.active_soundlib
+    -- If a soundlib is already active, indicated by ga.active_soundlib
        holding the identifier of one of the added soundlib integrations,
        then the sound_exit_nhsound() is called to turn it off or
        deactivate it.