diff --git a/nym-wallet/src/components/RewardsPlayground/inputsValidationSchema.ts b/nym-wallet/src/components/RewardsPlayground/inputsValidationSchema.ts
index ef5d9ecc0d..2e44ec4cb5 100644
--- a/nym-wallet/src/components/RewardsPlayground/inputsValidationSchema.ts
+++ b/nym-wallet/src/components/RewardsPlayground/inputsValidationSchema.ts
@@ -35,7 +35,9 @@ export const inputValidationSchema = Yup.object().shape({
     .test('Is valid operator cost value', (value, ctx) => {
       const stringValueToNumber = Math.round(Number(value));
 
-      if (isGreaterThan(stringValueToNumber, -1) && isLessThan(stringValueToNumber, 101)) return true;
-      return ctx.createError({ message: 'Operator cost must be a valid number' });
+      if (isLessThan(stringValueToNumber, 0))
+        return ctx.createError({ message: 'Operator cost must be a valid number' });
+
+      return true;
     }),
 });