diff --git a/src/plugins/cppeditor/cpppreprocessordialog.cpp b/src/plugins/cppeditor/cpppreprocessordialog.cpp
index b0569635633..37b400cbf75 100644
--- a/src/plugins/cppeditor/cpppreprocessordialog.cpp
+++ b/src/plugins/cppeditor/cpppreprocessordialog.cpp
@@ -53,6 +53,7 @@ CppPreProcessorDialog::CppPreProcessorDialog(CPPEditorWidget *editorWidget,
 
     m_ui->setupUi(this);
     m_ui->editorLabel->setText(m_ui->editorLabel->text().arg(QFileInfo(m_filePath).fileName()));
+    m_ui->editWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 
     CppSnippetProvider().decorateEditor(m_ui->editWidget);