diff --git a/src/gui/painting/qcups_p.h b/src/gui/painting/qcups_p.h
index bc00c7396e..4b3ea32ac7 100644
--- a/src/gui/painting/qcups_p.h
+++ b/src/gui/painting/qcups_p.h
@@ -65,7 +65,7 @@ QT_BEGIN_NAMESPACE
 
 Q_DECLARE_TYPEINFO(cups_option_t, Q_MOVABLE_TYPE | Q_PRIMITIVE_TYPE);
 
-class QCUPSSupport
+class Q_GUI_EXPORT QCUPSSupport
 {
 public:
     QCUPSSupport();
diff --git a/src/gui/painting/qpdf_p.h b/src/gui/painting/qpdf_p.h
index 39e6c21620..6b2e16f3de 100644
--- a/src/gui/painting/qpdf_p.h
+++ b/src/gui/painting/qpdf_p.h
@@ -153,8 +153,8 @@ namespace QPdf {
     struct PaperSize {
         int width, height; // in postscript points
     };
-    PaperSize paperSize(QPrinter::PaperSize paperSize);
-    const char *paperSizeToString(QPrinter::PaperSize paperSize);
+    Q_GUI_EXPORT PaperSize paperSize(QPrinter::PaperSize paperSize);
+    Q_GUI_EXPORT const char *paperSizeToString(QPrinter::PaperSize paperSize);
 
 }