diff --git a/app/src/main/res/values-ja/strings.xml b/app/src/main/res/values-ja/strings.xml
index 9b1d74c..dea5088 100644
--- a/app/src/main/res/values-ja/strings.xml
+++ b/app/src/main/res/values-ja/strings.xml
@@ -126,6 +126,6 @@
     <string name="okay">OK</string>
     <string name="view_help">ヘルプを表示</string>
 
-    <string name="pref_keep_screen_on">Keep Screen On</string>
-    <string name="pref_keep_screen_on_summary">Don\'t turn the screen off while playing</string>
+    <string name="pref_keep_screen_on">画面をオンのままにする</string>
+    <string name="pref_keep_screen_on_summary">プレイ中は画面をオフにしません</string>
 </resources>