diff --git a/src/corelib/animation/qvariantanimation.cpp b/src/corelib/animation/qvariantanimation.cpp
index 7117092c54a..75b8a3fbbf6 100644
--- a/src/corelib/animation/qvariantanimation.cpp
+++ b/src/corelib/animation/qvariantanimation.cpp
@@ -448,7 +448,7 @@ void QVariantAnimation::registerInterpolator(QVariantAnimation::Interpolator fun
 
 template<typename T> static inline QVariantAnimation::Interpolator castToInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress))
 {
-     return reinterpret_cast<QVariantAnimation::Interpolator>(func);
+     return reinterpret_cast<QVariantAnimation::Interpolator>(reinterpret_cast<void(*)()>(func));
 }
 
 QVariantAnimation::Interpolator QVariantAnimationPrivate::getInterpolator(int interpolationType)
diff --git a/src/corelib/animation/qvariantanimation.h b/src/corelib/animation/qvariantanimation.h
index f21832b2566..0d007487b98 100644
--- a/src/corelib/animation/qvariantanimation.h
+++ b/src/corelib/animation/qvariantanimation.h
@@ -113,7 +113,7 @@ private:
 
 template <typename T>
 void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
-    QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(func), qMetaTypeId<T>());
+    QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(reinterpret_cast<void(*)()>(func)), qMetaTypeId<T>());
 }
 
 #endif //QT_NO_ANIMATION