diff --git a/src/gui/painting/qcolorspace.cpp b/src/gui/painting/qcolorspace.cpp
index fda235c405b..ed25ead2627 100644
--- a/src/gui/painting/qcolorspace.cpp
+++ b/src/gui/painting/qcolorspace.cpp
@@ -198,9 +198,9 @@ QColorSpacePrivate::QColorSpacePrivate(QColorSpace::NamedColorSpace namedColorSp
     initialize();
 }
 
-QColorSpacePrivate::QColorSpacePrivate(QColorSpace::Primaries primaries, QColorSpace::TransferFunction fun, float gamma)
+QColorSpacePrivate::QColorSpacePrivate(QColorSpace::Primaries primaries, QColorSpace::TransferFunction transferFunction, float gamma)
         : primaries(primaries)
-        , transferFunction(fun)
+        , transferFunction(transferFunction)
         , gamma(gamma)
 {
     identifyColorSpace();
@@ -208,10 +208,10 @@ QColorSpacePrivate::QColorSpacePrivate(QColorSpace::Primaries primaries, QColorS
 }
 
 QColorSpacePrivate::QColorSpacePrivate(const QColorSpacePrimaries &primaries,
-                                       QColorSpace::TransferFunction fun,
+                                       QColorSpace::TransferFunction transferFunction,
                                        float gamma)
         : primaries(QColorSpace::Primaries::Custom)
-        , transferFunction(fun)
+        , transferFunction(transferFunction)
         , gamma(gamma)
 {
     Q_ASSERT(primaries.areValid());
@@ -453,11 +453,11 @@ QColorSpace::QColorSpace(NamedColorSpace namedColorSpace)
 }
 
 /*!
-    Creates a custom color space with the primaries \a primaries, using the transfer function \a fun and
+    Creates a custom color space with the primaries \a primaries, using the transfer function \a transferFunction and
     optionally \a gamma.
  */
-QColorSpace::QColorSpace(QColorSpace::Primaries primaries, QColorSpace::TransferFunction fun, float gamma)
-        : d_ptr(new QColorSpacePrivate(primaries, fun, gamma))
+QColorSpace::QColorSpace(QColorSpace::Primaries primaries, QColorSpace::TransferFunction transferFunction, float gamma)
+        : d_ptr(new QColorSpacePrivate(primaries, transferFunction, gamma))
 {
 }
 
@@ -472,18 +472,18 @@ QColorSpace::QColorSpace(QColorSpace::Primaries primaries, float gamma)
 
 /*!
     Creates a custom colorspace with a primaries based on the chromaticities of the primary colors \a whitePoint,
-    \a redPoint, \a greenPoint and \a bluePoint, and using the transfer function \a fun and optionally \a gamma.
+    \a redPoint, \a greenPoint and \a bluePoint, and using the transfer function \a transferFunction and optionally \a gamma.
  */
 QColorSpace::QColorSpace(const QPointF &whitePoint, const QPointF &redPoint,
                          const QPointF &greenPoint, const QPointF &bluePoint,
-                         QColorSpace::TransferFunction fun, float gamma)
+                         QColorSpace::TransferFunction transferFunction, float gamma)
 {
     QColorSpacePrimaries primaries(whitePoint, redPoint, greenPoint, bluePoint);
     if (!primaries.areValid()) {
         qWarning() << "QColorSpace attempted constructed from invalid primaries:" << whitePoint << redPoint << greenPoint << bluePoint;
         return;
     }
-    d_ptr = new QColorSpacePrivate(primaries, fun, gamma);
+    d_ptr = new QColorSpacePrivate(primaries, transferFunction, gamma);
 }
 
 QColorSpace::~QColorSpace() = default;
diff --git a/src/gui/painting/qcolorspace.h b/src/gui/painting/qcolorspace.h
index c464a271be6..a53a7862339 100644
--- a/src/gui/painting/qcolorspace.h
+++ b/src/gui/painting/qcolorspace.h
@@ -84,11 +84,11 @@ public:
 
     QColorSpace() noexcept = default;
     QColorSpace(NamedColorSpace namedColorSpace);
-    QColorSpace(Primaries primaries, TransferFunction fun, float gamma = 0.0f);
+    QColorSpace(Primaries primaries, TransferFunction transferFunction, float gamma = 0.0f);
     QColorSpace(Primaries primaries, float gamma);
     QColorSpace(const QPointF &whitePoint, const QPointF &redPoint,
                 const QPointF &greenPoint, const QPointF &bluePoint,
-                TransferFunction fun, float gamma = 0.0f);
+                TransferFunction transferFunction, float gamma = 0.0f);
     ~QColorSpace();
 
     QColorSpace(const QColorSpace &colorSpace) noexcept;
diff --git a/src/gui/painting/qcolorspace_p.h b/src/gui/painting/qcolorspace_p.h
index a6c0616e4d6..da2d3a9c30f 100644
--- a/src/gui/painting/qcolorspace_p.h
+++ b/src/gui/painting/qcolorspace_p.h
@@ -91,8 +91,8 @@ class QColorSpacePrivate : public QSharedData
 public:
     QColorSpacePrivate();
     QColorSpacePrivate(QColorSpace::NamedColorSpace namedColorSpace);
-    QColorSpacePrivate(QColorSpace::Primaries primaries, QColorSpace::TransferFunction fun, float gamma);
-    QColorSpacePrivate(const QColorSpacePrimaries &primaries, QColorSpace::TransferFunction fun, float gamma);
+    QColorSpacePrivate(QColorSpace::Primaries primaries, QColorSpace::TransferFunction transferFunction, float gamma);
+    QColorSpacePrivate(const QColorSpacePrimaries &primaries, QColorSpace::TransferFunction transferFunction, float gamma);
     QColorSpacePrivate(const QColorSpacePrivate &other) = default;
 
     static const QColorSpacePrivate *get(const QColorSpace &colorSpace)