diff --git a/src/gui/painting/qpen.cpp b/src/gui/painting/qpen.cpp
index c3bc7964a3..5679c600ba 100644
--- a/src/gui/painting/qpen.cpp
+++ b/src/gui/painting/qpen.cpp
@@ -316,7 +316,7 @@ QPen::QPen(const QBrush &brush, qreal width, Qt::PenStyle s, Qt::PenCapStyle c,
     Constructs a pen that is a copy of the given \a pen.
 */
 
-QPen::QPen(const QPen &p)
+QPen::QPen(const QPen &p) Q_DECL_NOTHROW
 {
     d = p.d;
     if (d)
@@ -375,7 +375,7 @@ void QPen::detach()
     this pen.
 */
 
-QPen &QPen::operator=(const QPen &p)
+QPen &QPen::operator=(const QPen &p) Q_DECL_NOTHROW
 {
     QPen(p).swap(*this);
     return *this;
diff --git a/src/gui/painting/qpen.h b/src/gui/painting/qpen.h
index 30f55cd4ce..48b7379924 100644
--- a/src/gui/painting/qpen.h
+++ b/src/gui/painting/qpen.h
@@ -58,18 +58,18 @@ public:
     QPen(const QColor &color);
     QPen(const QBrush &brush, qreal width, Qt::PenStyle s = Qt::SolidLine,
          Qt::PenCapStyle c = Qt::SquareCap, Qt::PenJoinStyle j = Qt::BevelJoin);
-    QPen(const QPen &pen);
+    QPen(const QPen &pen) Q_DECL_NOTHROW;
 
     ~QPen();
 
-    QPen &operator=(const QPen &pen);
+    QPen &operator=(const QPen &pen) Q_DECL_NOTHROW;
 #ifdef Q_COMPILER_RVALUE_REFS
-    inline QPen(QPen &&other)
+    QPen(QPen &&other) Q_DECL_NOTHROW
         : d(other.d) { other.d = 0; }
-    inline QPen &operator=(QPen &&other)
+    QPen &operator=(QPen &&other) Q_DECL_NOTHROW
     { qSwap(d, other.d); return *this; }
 #endif
-    inline void swap(QPen &other) { qSwap(d, other.d); }
+    void swap(QPen &other) Q_DECL_NOTHROW { qSwap(d, other.d); }
 
     Qt::PenStyle style() const;
     void setStyle(Qt::PenStyle);