diff --git a/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/down.sql b/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/down.sql
new file mode 100644
index 0000000000..a37b7208ed
--- /dev/null
+++ b/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/down.sql
@@ -0,0 +1,7 @@
+-- noinspection SqlDialectInspectionForFile
+-- noinspection SqlNoDataSourceInspectionForFile
+-- noinspection SqlResolveForFile
+
+DROP INDEX `fk_maybe_custom_vocoder_token` ON `tts_models`;
+
+ALTER TABLE tts_models DROP COLUMN maybe_custom_vocoder_token;
diff --git a/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/up.sql b/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/up.sql
new file mode 100644
index 0000000000..79dad50a69
--- /dev/null
+++ b/_migrations/2022-08-10-055529_alter_table_tts_models_add_vocoder/up.sql
@@ -0,0 +1,11 @@
+-- noinspection SqlDialectInspectionForFile
+-- noinspection SqlNoDataSourceInspectionForFile
+-- noinspection SqlResolveForFile
+
+-- If set, we'll use a custom vocoder (from table vocoder_models) instead of a default vocoder.
+-- If not set, we'll use `maybe_default_pretrained_vocoder` (or the website default).
+ALTER TABLE tts_models
+ADD COLUMN maybe_custom_vocoder_token VARCHAR(32) DEFAULT NULL
+    AFTER maybe_default_pretrained_vocoder;
+
+CREATE INDEX `fk_maybe_custom_vocoder_token` ON `tts_models` (`maybe_custom_vocoder_token`);
diff --git a/_migrations_squashed/tts_tables/tts_models.sql b/_migrations_squashed/tts_tables/tts_models.sql
index 04b55aca2a..acaaa5f122 100644
--- a/_migrations_squashed/tts_tables/tts_models.sql
+++ b/_migrations_squashed/tts_tables/tts_models.sql
@@ -53,6 +53,10 @@ CREATE TABLE tts_models (
   -- If not set, use the website default. (Currently HifiGan-SS)
   maybe_default_pretrained_vocoder VARCHAR(64) DEFAULT NULL,
 
+  -- If set, we'll use a custom vocoder (from table vocoder_models) instead of a default vocoder.
+  -- If not set, we'll use `maybe_default_pretrained_vocoder` (or the website default).
+  maybe_custom_vocoder_token VARCHAR(32) DEFAULT NULL,
+
   -- Optional Pointer to a newer version of the voice
   -- If there's a newer version, we can disable this one.
   -- maybe_updated_model_token VARCHAR(32) DEFAULT NULL,
@@ -201,6 +205,7 @@ CREATE TABLE tts_models (
   UNIQUE KEY (token),
   KEY fk_creator_user_token (creator_user_token),
   KEY fk_maybe_mod_user_token (maybe_mod_user_token),
+  KEY fk_maybe_custom_vocoder_token (maybe_custom_vocoder_token),
   KEY index_creator_ip_address_creation (creator_ip_address_creation),
   KEY index_creator_ip_address_last_update (creator_ip_address_last_update),
   KEY index_creator_set_visibility (creator_set_visibility),