diff --git a/src/plugins/cppeditor/cppcodemodelsettingspage.cpp b/src/plugins/cppeditor/cppcodemodelsettingspage.cpp
index 780ae671ccd..bea6d5fe33d 100644
--- a/src/plugins/cppeditor/cppcodemodelsettingspage.cpp
+++ b/src/plugins/cppeditor/cppcodemodelsettingspage.cpp
@@ -381,6 +381,8 @@ ClangdSettingsWidget::ClangdSettingsWidget(const ClangdSettings::Data &settingsD
             this, &ClangdSettingsWidget::settingsDataChanged);
     connect(&d->threadLimitSpinBox, qOverload<int>(&QSpinBox::valueChanged),
             this, &ClangdSettingsWidget::settingsDataChanged);
+    connect(&d->documentUpdateThreshold, qOverload<int>(&QSpinBox::valueChanged),
+            this, &ClangdSettingsWidget::settingsDataChanged);
     connect(&d->clangdChooser, &Utils::PathChooser::pathChanged,
             this, &ClangdSettingsWidget::settingsDataChanged);
 }