diff --git a/src/gui/painting/qpagesize.cpp b/src/gui/painting/qpagesize.cpp
index 7d19d49b4e..9cf7f192e8 100644
--- a/src/gui/painting/qpagesize.cpp
+++ b/src/gui/painting/qpagesize.cpp
@@ -1255,15 +1255,18 @@ QPageSize &QPageSize::operator=(const QPageSize &other)
 */
 
 /*!
-    Returns \c true if this page is equal to the \a other page, i.e. if the
-    page has the same attributes. Current attributes are size and name.
+    \relates QPageSize
+
+    Returns \c true if page size \a lhs is equal to page size \a rhs,
+    i.e. if the page sizes have the same attributes. Current
+    attributes are size and name.
 */
 
-bool QPageSize::operator==(const QPageSize &other) const
+bool operator==(const QPageSize &lhs, const QPageSize &rhs)
 {
-    if (d == other.d)
+    if (lhs.d == rhs.d)
         return true;
-    return d && other.d && *d == *other.d;
+    return lhs.d && rhs.d && *lhs.d == *rhs.d;
 }
 
 /*!
diff --git a/src/gui/painting/qpagesize.h b/src/gui/painting/qpagesize.h
index 8b99d6af2e..d228f05a4a 100644
--- a/src/gui/painting/qpagesize.h
+++ b/src/gui/painting/qpagesize.h
@@ -246,7 +246,7 @@ public:
 
     void swap(QPageSize &other) { d.swap(other.d); }
 
-    bool operator==(const QPageSize &other) const;
+    friend Q_GUI_EXPORT bool operator==(const QPageSize &lhs, const QPageSize &rhs);
     bool isEquivalentTo(const QPageSize &other) const;
 
     bool isValid() const;
@@ -298,6 +298,8 @@ private:
 
 Q_DECLARE_SHARED(QPageSize)
 
+Q_GUI_EXPORT bool operator==(const QPageSize &lhs, const QPageSize &rhs);
+
 #ifndef QT_NO_DEBUG_STREAM
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QPageSize &pageSize);
 #endif