diff --git a/avidemux/qt4/ADM_UIs/include/DIA_flyDialogQt4.h b/avidemux/qt4/ADM_UIs/include/DIA_flyDialogQt4.h
index d30886d9d1..0b8528f498 100644
--- a/avidemux/qt4/ADM_UIs/include/DIA_flyDialogQt4.h
+++ b/avidemux/qt4/ADM_UIs/include/DIA_flyDialogQt4.h
@@ -64,7 +64,7 @@ class ADM_UIQT46_EXPORT ADM_QCanvas : public QWidget
     \class ADM_flyDialog
     \brief Base class for flyDialog
 */
-class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialog
+class ADM_UIQT46_EXPORT ADM_flyDialog
 {
  protected:
   
@@ -127,7 +127,7 @@ class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialog
 /**
  * \class ADM_flyDialogYuv
  */
-class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialogYuv: public  ADM_flyDialog
+class ADM_UIQT46_EXPORT ADM_flyDialogYuv: public  ADM_flyDialog
 {
 public:
                     ADMImage              *_yuvBufferOut;
@@ -147,7 +147,7 @@ class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialogYuv: public  ADM_flyDialog
 /**
  * \class ADM_flyDialogYuv
  */
-class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialogRgb: public  ADM_flyDialog
+class ADM_UIQT46_EXPORT ADM_flyDialogRgb: public  ADM_flyDialog
 {
 public:
                     ADM_byteBuffer     _rgbByteBuffer;
@@ -168,7 +168,7 @@ class ADM_COREVIDEOFILTER6_EXPORT ADM_flyDialogRgb: public  ADM_flyDialog
 /**
  * \fn ADM_flyDialogYuv
  */
-class FlyDialogEventFilter : public QObject
+class ADM_UIQT46_EXPORT FlyDialogEventFilter : public QObject
 {
 	ADM_flyDialog *flyDialog;
 	bool recomputed;