diff --git a/backend/src/schemas.ts b/backend/src/schemas.ts
index 59338367a2eb926522ce33dd338f5df97b9a4d78..87a6bd39bafd88fd755597b6f3bc006a18d7ae57 100644
--- a/backend/src/schemas.ts
+++ b/backend/src/schemas.ts
@@ -72,6 +72,6 @@ export const WordChoice = Type.Object({
     default: 0.8,
     maximum: 1.0,
   }),
-  ocr_transcript_length_min: Type.Number({ minimum: 1, default: 1 }),
-  ocr_transcript_length_max: Type.Number({ minimum: 1, default: 20 }),
+  ocr_transcript_length_min: Type.Integer({ minimum: 1, default: 1 }),
+  ocr_transcript_length_max: Type.Integer({ minimum: 1, default: 20 }),
 });