diff --git a/src/plugins/texteditor/texteditor.cpp b/src/plugins/texteditor/texteditor.cpp
index f1d17faebcb..2d488fe1a19 100644
--- a/src/plugins/texteditor/texteditor.cpp
+++ b/src/plugins/texteditor/texteditor.cpp
@@ -955,8 +955,7 @@ TextEditorWidgetPrivate::TextEditorWidgetPrivate(TextEditorWidget *parent)
     connect(&m_codeAssistant, &CodeAssistant::finished,
             q, &TextEditorWidget::assistFinished);
 
-    connect(q, &QPlainTextEdit::blockCountChanged,
-            this, &TextEditorWidgetPrivate::slotUpdateExtraAreaWidth);
+    connect(q, &QPlainTextEdit::blockCountChanged, this, [this]() { slotUpdateExtraAreaWidth(); });
 
     connect(q, &QPlainTextEdit::modificationChanged,
             m_extraArea, QOverload<>::of(&QWidget::update));