diff --git a/src/widgets/styles/qwindowsstyle_p.h b/src/widgets/styles/qwindowsstyle_p.h
index da36d2af1b..2724222652 100644
--- a/src/widgets/styles/qwindowsstyle_p.h
+++ b/src/widgets/styles/qwindowsstyle_p.h
@@ -97,7 +97,6 @@ protected:
 private:
     Q_DISABLE_COPY(QWindowsStyle)
     Q_DECLARE_PRIVATE(QWindowsStyle)
-    void *reserved;
 };
 
 #endif // QT_NO_STYLE_WINDOWS
diff --git a/src/widgets/styles/qwindowsxpstyle_p.h b/src/widgets/styles/qwindowsxpstyle_p.h
index 1706a1abe6..4dcb75716e 100644
--- a/src/widgets/styles/qwindowsxpstyle_p.h
+++ b/src/widgets/styles/qwindowsxpstyle_p.h
@@ -93,7 +93,6 @@ private:
     Q_DISABLE_COPY(QWindowsXPStyle)
     Q_DECLARE_PRIVATE(QWindowsXPStyle)
     friend class QStyleFactory;
-    void *reserved;
 };
 
 #endif // QT_NO_STYLE_WINDOWSXP