diff --git a/src/widgets/dialogs/qfilesystemmodel.cpp b/src/widgets/dialogs/qfilesystemmodel.cpp
index 3d767971a42..05bacdbd63f 100644
--- a/src/widgets/dialogs/qfilesystemmodel.cpp
+++ b/src/widgets/dialogs/qfilesystemmodel.cpp
@@ -643,7 +643,7 @@ int QFileSystemModel::rowCount(const QModelIndex &parent) const
 */
 int QFileSystemModel::columnCount(const QModelIndex &parent) const
 {
-    return (parent.column() > 0) ? 0 : 4;
+    return (parent.column() > 0) ? 0 : QFileSystemModelPrivate::NumColumns;
 }
 
 /*!
diff --git a/src/widgets/dialogs/qfilesystemmodel_p.h b/src/widgets/dialogs/qfilesystemmodel_p.h
index f7490805484..9e9e894e3a2 100644
--- a/src/widgets/dialogs/qfilesystemmodel_p.h
+++ b/src/widgets/dialogs/qfilesystemmodel_p.h
@@ -70,6 +70,8 @@ class Q_AUTOTEST_EXPORT QFileSystemModelPrivate : public QAbstractItemModelPriva
     Q_DECLARE_PUBLIC(QFileSystemModel)
 
 public:
+    enum { NumColumns = 4 };
+
     class QFileSystemNode
     {
     public: