diff --git a/20230218130437_translations.up.sql b/20230218130437_translations.up.sql
index e04c033..e925664 100644
--- a/20230218130437_translations.up.sql
+++ b/20230218130437_translations.up.sql
@@ -16,9 +16,12 @@ CREATE TABLE translation_texts (
     translation_id BIGINT    NOT NULL REFERENCES translations (id),
     lang_id        BIGINT    NOT NULL REFERENCES languages (id),
     value          TEXT      NOT NULL,
+    commentary     TEXT,
 
---  CONSTRAINT name               CHECK (condition)
-    CONSTRAINT value_is_sane_text CHECK (is_sane_text(value))
+--  CONSTRAINT name                    CHECK (condition)
+    CONSTRAINT value_is_sane_text      CHECK (is_sane_text(value)),
+    CONSTRAINT commentary_is_sane_text CHECK (commentary IS NULL OR
+                                              is_sane_text(commentary))
 );
 
 CREATE UNIQUE INDEX translations_word_index ON translations (word_id, index);