diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 493b0bd..9505c00 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -19,7 +19,7 @@ jobs:
         run: chmod +x gradlew
       - name: build
         run: |
-          ./gradlew build
+          ./gradlew jsBrowserProductionWebpack
       - name: deploy
         uses: JamesIves/github-pages-deploy-action@3.7.1
         with:
diff --git a/torisetsu/src/jsMain/kotlin/core/ComposeQuiz.kt b/torisetsu/src/jsMain/kotlin/core/ComposeQuiz.kt
index 960b0db..ef99b12 100644
--- a/torisetsu/src/jsMain/kotlin/core/ComposeQuiz.kt
+++ b/torisetsu/src/jsMain/kotlin/core/ComposeQuiz.kt
@@ -124,7 +124,7 @@ class ComposeQuiz : Quiz {
         ),
         Question(
             id = 11,
-            questionText = "このコードの実行結果は？",
+            questionText = "このコードの実行結果は？\nprintln(\"-\"?.let{null}?:\"_\")",
             answerOptions = listOf(
                 AnswerOption("正解", 21, false),
                 AnswerOption("不正解", 10, false),