diff --git a/src/cli/tui/screens/evaluator/AddEvaluatorScreen.tsx b/src/cli/tui/screens/evaluator/AddEvaluatorScreen.tsx
index b4294f978..f90ca9529 100644
--- a/src/cli/tui/screens/evaluator/AddEvaluatorScreen.tsx
+++ b/src/cli/tui/screens/evaluator/AddEvaluatorScreen.tsx
@@ -385,6 +385,7 @@ export function AddEvaluatorScreen({ onComplete, onExit, existingEvaluatorNames
             key="kms-key-arn"
             prompt="KMS key ARN for encryption (optional, press Enter to skip)"
             initialValue=""
+            allowEmpty
             onSubmit={wizard.setKmsKeyArn}
             onCancel={() => wizard.goBack()}
             customValidation={value =>