diff --git a/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/down.sql b/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/down.sql
index d3df5c6d9791d08f146ef0b1a902c392e6eea89b..cee1b6a5af9f249a164a2b925c76c76a0788804c 100644
--- a/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/down.sql
+++ b/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/down.sql
@@ -6,4 +6,4 @@ DROP TABLE kara_tag;
 DROP TABLE tag;
 DROP TABLE kara_tags;
 DROP TABLE history;
-DROP TABLE ISO_639_1;
\ No newline at end of file
+DROP TABLE iso_639_1;
\ No newline at end of file
diff --git a/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/up.sql b/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/up.sql
index 005e63bf6fd6e74ce7e536a66dd941e27cde0693..42c7d46691812cabb4202a024aa39eec7cb431e6 100644
--- a/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/up.sql
+++ b/src/rust/liblektor-rs/migrations/2022-09-30-204512_initial/up.sql
@@ -95,6 +95,7 @@ INSERT OR REPLACE INTO iso_639_1 (is_macro, is_iso, code, name_en) VALUES
   ( false, true, "vi", "Vietnamese"     ),
   ( false, true, "zh", "Chinese"        ),
   ( false, true, "zu", "Zulu"           ),
-  -- ...
+  -- The things we added because they were not defined in the ISO 639-1 and
+  -- because we need them to distinguish some karas.
   ( true,  false, "fiction", "Fictional" ),
   ( true,  false, "autre",   "Joker"     );