diff -uprN a/src/core/SettingsManager.cpp b/src/core/SettingsManager.cpp
--- a/src/core/SettingsManager.cpp	2018-03-02 11:36:46.358903874 +0900
+++ b/src/core/SettingsManager.cpp	2018-03-02 11:37:44.108903076 +0900
@@ -73,7 +73,7 @@ void SettingsManager::createInstance(con
 	registerOption(AddressField_SuggestSearchOption, BooleanType, true);
 	registerOption(AddressField_SuggestSpecialPagesOption, BooleanType, true);
 	registerOption(Backends_PasswordsOption, EnumerationType, QLatin1String("file"), {QLatin1String("file")});
-	registerOption(Backends_WebOption, EnumerationType, QLatin1String("qtwebkit"), {QLatin1String("qtwebkit")}, (OptionDefinition::IsEnabledFlag | OptionDefinition::IsVisibleFlag | OptionDefinition::RequiresRestartFlag));
+	registerOption(Backends_WebOption, EnumerationType, QLatin1String("qtwebengine"), {QLatin1String("qtwebengine")}, (OptionDefinition::IsEnabledFlag | OptionDefinition::IsVisibleFlag | OptionDefinition::RequiresRestartFlag));
 	registerOption(Browser_AlwaysAskWhereToSaveDownloadOption, BooleanType, true);
 	registerOption(Browser_EnableMouseGesturesOption, BooleanType, true);
 	registerOption(Browser_EnableSingleKeyShortcutsOption, BooleanType, true);