3 files changed, 3 insertions, 3 deletions
diff --git a/src/corelib/itemmodels/qabstractproxymodel.h b/src/corelib/itemmodels/qabstractproxymodel.h
index 3c82199038..d80fcb683c 100644
--- a/src/corelib/itemmodels/qabstractproxymodel.h
+++ b/src/corelib/itemmodels/qabstractproxymodel.h
@@ -59,7 +59,7 @@ class Q_CORE_EXPORT QAbstractProxyModel : public QAbstractItemModel
     Q_OBJECT
 
 public:
-    QAbstractProxyModel(QObject *parent = 0);
+    explicit QAbstractProxyModel(QObject *parent = 0);
     ~QAbstractProxyModel();
 
     virtual void setSourceModel(QAbstractItemModel *sourceModel);
diff --git a/src/corelib/itemmodels/qsortfilterproxymodel.h b/src/corelib/itemmodels/qsortfilterproxymodel.h
index 8c7433d307..f18b1fccb1 100644
--- a/src/corelib/itemmodels/qsortfilterproxymodel.h
+++ b/src/corelib/itemmodels/qsortfilterproxymodel.h
@@ -73,7 +73,7 @@ class Q_CORE_EXPORT QSortFilterProxyModel : public QAbstractProxyModel
     Q_PROPERTY(int filterRole READ filterRole WRITE setFilterRole)
 
 public:
-    QSortFilterProxyModel(QObject *parent = 0);
+    explicit QSortFilterProxyModel(QObject *parent = 0);
     ~QSortFilterProxyModel();
 
     void setSourceModel(QAbstractItemModel *sourceModel);
diff --git a/src/corelib/itemmodels/qstringlistmodel.h b/src/corelib/itemmodels/qstringlistmodel.h
index d8b3f87f4a..a6bc4e7bd3 100644
--- a/src/corelib/itemmodels/qstringlistmodel.h
+++ b/src/corelib/itemmodels/qstringlistmodel.h
@@ -57,7 +57,7 @@ class Q_CORE_EXPORT QStringListModel : public QAbstractListModel
     Q_OBJECT
 public:
     explicit QStringListModel(QObject *parent = 0);
-    QStringListModel(const QStringList &strings, QObject *parent = 0);
+    explicit QStringListModel(const QStringList &strings, QObject *parent = 0);
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const;