diff --git a/docs/advanced/muxing.md b/docs/advanced/muxing.md
index 158cc55d1..8556a7065 100644
--- a/docs/advanced/muxing.md
+++ b/docs/advanced/muxing.md
@@ -264,11 +264,11 @@ These alternative presentations are lost once decoded, even if they were to be e
   for %X in (*.mkv) do mkvpropedit "%X" --add-track-statistics-tags --edit info --delete title ^
   --edit track:v1 --set name="Encode Group"              --set language=jpn --set flag-default=1 ^
   --edit track:a1 --set name="FLAC 2.0"                  --set language=jpn --set flag-default=1 ^
-  --edit track:a2 --set name="Opus 5.1 @ 320kb/s"        --set language=eng --set flag-default=0 ^
+  --edit track:a2 --set name="Opus 5.1 @ 320kb/s"        --set language=eng --set flag-default=1 ^
   --edit track:s1 --set name="Full Subtitles [Fansub]"   --set language=eng --set flag-default=1 --set flag-forced=0 ^
   --edit track:s2 --set name="Honorifics [Fansub]"       --set language=enm --set flag-default=1 --set flag-forced=0 ^
   --edit track:s3 --set name="Signs/Songs [Fansub]"      --set language=eng --set flag-default=0 --set flag-forced=1 ^
-  --edit track:s4 --set name="Full Subtitles [Official]" --set language=eng --set flag-default=0 --set flag-forced=0
+  --edit track:s4 --set name="Full Subtitles [Official]" --set language=spa --set flag-default=1 --set flag-forced=0
   ```
 
   +++ Linux
@@ -278,11 +278,11 @@ These alternative presentations are lost once decoded, even if they were to be e
     mkvpropedit "${file}" --add-track-statistics-tags --edit info --delete title \
     --edit track:v1 --set name="Encode Group"              --set language=jpn --set flag-default=1 \
     --edit track:a1 --set name="FLAC 2.0"                  --set language=jpn --set flag-default=1 \
-    --edit track:a2 --set name="Opus 5.1 @ 320kb/s"        --set language=eng --set flag-default=0 \
+    --edit track:a2 --set name="Opus 5.1 @ 320kb/s"        --set language=eng --set flag-default=1 \
     --edit track:s1 --set name="Full Subtitles [Fansub]"   --set language=eng --set flag-default=1 --set flag-forced=0 \
     --edit track:s2 --set name="Honorifics [Fansub]"       --set language=enm --set flag-default=1 --set flag-forced=0 \
     --edit track:s3 --set name="Signs/Songs [Fansub]"      --set language=eng --set flag-default=0 --set flag-forced=1 \
-    --edit track:s4 --set name="Full Subtitles [Official]" --set language=eng --set flag-default=0 --set flag-forced=0
+    --edit track:s4 --set name="Full Subtitles [Official]" --set language=spa --set flag-default=1 --set flag-forced=0
   done
   ```