diff --git a/src/Mod/Image/App/PreCompiled.h b/src/Mod/Image/App/PreCompiled.h
index b7e7dd11e1..c6e0d8fa0e 100644
--- a/src/Mod/Image/App/PreCompiled.h
+++ b/src/Mod/Image/App/PreCompiled.h
@@ -25,13 +25,6 @@
 
 #include <FCConfig.h>
 
-// Exporting of App classes
-#ifdef FC_OS_WIN32
-# define ImageExport __declspec(dllexport)
-#else // for Linux
-# define ImageExport
-#endif
-
 #ifdef _PreComp_
 /// here get the warnings of to long specifieres disabled (needed for VC6)
 #ifdef _MSC_VER
diff --git a/src/Mod/Image/Gui/PreCompiled.h b/src/Mod/Image/Gui/PreCompiled.h
index a315d43827..733abd36d1 100644
--- a/src/Mod/Image/Gui/PreCompiled.h
+++ b/src/Mod/Image/Gui/PreCompiled.h
@@ -25,15 +25,6 @@
 
 #include <FCConfig.h>
 
-// Importing of App classes
-#ifdef FC_OS_WIN32
-# define ImageExport __declspec(dllimport)
-# define ImageGuiExport __declspec(dllexport)
-#else // for Linux
-# define ImageExport
-# define ImageGuiExport
-#endif
-
 // here get the warnings of too long specifiers disabled (needed for VC6)
 #ifdef _MSC_VER
 # pragma warning(disable : 4005)
diff --git a/src/Mod/Image/ImageGlobal.h b/src/Mod/Image/ImageGlobal.h
index 1d8af6fc8e..26cca10062 100644
--- a/src/Mod/Image/ImageGlobal.h
+++ b/src/Mod/Image/ImageGlobal.h
@@ -5,11 +5,6 @@
  *                                                                         *
  ***************************************************************************/
 
-// this file contains the export macros for the App and Gui module
-// for Qt Designer, see e.g. 
-// https://forum.freecadweb.org/viewtopic.php?p=558050#p558050
-// why this is necessary
-
 #include <FCGlobal.h>
 
 #ifndef IMAGE_GLOBAL_H