diff --git a/packages/backend/src/models/Note.ts b/packages/backend/src/models/Note.ts
index 88dfc2960..3b764c227 100644
--- a/packages/backend/src/models/Note.ts
+++ b/packages/backend/src/models/Note.ts
@@ -75,9 +75,9 @@ export class MiNote {
 	})
 	public name: string | null;
 
-	@Index() // USING pgroonga pgroonga_varchar_full_text_search_ops_v2
-	@Column('varchar', {
-		length: 512, nullable: true,
+	@Index() // USING pgroonga
+	@Column('text', {
+		nullable: true,
 	})
 	public cw: string | null;