diff --git a/frontend/src/components/QueryInput.tsx b/frontend/src/components/QueryInput.tsx
index 6622bf6..401d6f6 100644
--- a/frontend/src/components/QueryInput.tsx
+++ b/frontend/src/components/QueryInput.tsx
@@ -25,7 +25,7 @@ export const QueryInput: React.FC<QueryInputProps> = ({ onSubmit, onHalfQuestion
 
   const handleSubmit = (e: FormEvent): void => {
     e.preventDefault()
-    const trimmed = question.trim()
+    const trimmed = displayValue.trim()
     if (trimmed && !isLoading) {
       onSubmit(trimmed)
       setSubmittedQuestion(trimmed)
@@ -49,7 +49,7 @@ export const QueryInput: React.FC<QueryInputProps> = ({ onSubmit, onHalfQuestion
     }
   }
 
-  const isDisabled = isLoading || question.trim() === ''
+  const isDisabled = isLoading || displayValue.trim() === ''
 
   const textareaClassName = [
     'w-full rounded border border-gray-300 px-3 py-2 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent disabled:bg-gray-100 disabled:cursor-not-allowed',
@@ -72,7 +72,7 @@ export const QueryInput: React.FC<QueryInputProps> = ({ onSubmit, onHalfQuestion
           <button
             type="button"
             onClick={() => {
-              const trimmed = question.trim()
+              const trimmed = displayValue.trim()
               if (trimmed && !isLoading) {
                 onHalfQuestion(trimmed)
                 setSubmittedQuestion(trimmed)