1 files changed, 2 insertions, 1 deletions
diff --git a/src/gui/painting/qpen_p.h b/src/gui/painting/qpen_p.h
index 93f2532e63..4b2fcaa71d 100644
--- a/src/gui/painting/qpen_p.h
+++ b/src/gui/painting/qpen_p.h
@@ -60,7 +60,7 @@ QT_BEGIN_NAMESPACE
 class QPenPrivate {
 public:
     QPenPrivate(const QBrush &brush, qreal width, Qt::PenStyle, Qt::PenCapStyle,
-                Qt::PenJoinStyle _joinStyle);
+                Qt::PenJoinStyle _joinStyle, bool defaultWidth = true);
     QAtomicInt ref;
     qreal width;
     QBrush brush;
@@ -71,6 +71,7 @@ public:
     qreal dashOffset;
     qreal miterLimit;
     uint cosmetic : 1;
+    uint defaultWidth : 1; // default-constructed width? used for cosmetic pen compatibility
 };
 
 QT_END_NAMESPACE