diff --git a/src/Mod/Import/App/ExportOCAF.h b/src/Mod/Import/App/ExportOCAF.h
index 767c746947..9491316d72 100644
--- a/src/Mod/Import/App/ExportOCAF.h
+++ b/src/Mod/Import/App/ExportOCAF.h
@@ -37,6 +37,7 @@
 #include <App/Material.h>
 #include <App/Part.h>
 #include <Mod/Part/App/FeatureCompound.h>
+#include <Mod/Import/ImportGlobal.h>
 
 
 class TDF_Label;
diff --git a/src/Mod/Import/App/ImportOCAF.h b/src/Mod/Import/App/ImportOCAF.h
index 4f30d921a9..0ae795cc31 100644
--- a/src/Mod/Import/App/ImportOCAF.h
+++ b/src/Mod/Import/App/ImportOCAF.h
@@ -39,7 +39,7 @@
 #include <App/Material.h>
 #include <App/Part.h>
 #include <Mod/Part/App/FeatureCompound.h>
-
+#include <Mod/Import/ImportGlobal.h>
 
 class TDF_Label;
 class TopLoc_Location;
diff --git a/src/Mod/Import/App/PreCompiled.h b/src/Mod/Import/App/PreCompiled.h
index 90d504886f..22bb5c0235 100644
--- a/src/Mod/Import/App/PreCompiled.h
+++ b/src/Mod/Import/App/PreCompiled.h
@@ -26,17 +26,6 @@
 
 #include <FCConfig.h>
 
-// Importing of App classes
-#ifdef FC_OS_WIN32
-# define ImportExport  __declspec(dllexport)
-# define PartExport    __declspec(dllimport)
-# define AppPartExport __declspec(dllimport)
-#else // for Linux
-# define ImportExport
-# define PartExport
-# define AppPartExport
-#endif
-
 
 /// here get the warnings of to long specifieres disabled (needet for VC6)
 #ifdef _MSC_VER
diff --git a/src/Mod/Import/App/StepShape.h b/src/Mod/Import/App/StepShape.h
index 703aec6755..637907a834 100644
--- a/src/Mod/Import/App/StepShape.h
+++ b/src/Mod/Import/App/StepShape.h
@@ -24,7 +24,7 @@
 #ifndef IMPORT_STEPSHAPE_H
 #define IMPORT_STEPSHAPE_H
 
-
+#include <Mod/Import/ImportGlobal.h>
 
 namespace Import
 {
diff --git a/src/Mod/Import/App/dxf.h b/src/Mod/Import/App/dxf.h
index 44da25c0f5..174ac14e56 100644
--- a/src/Mod/Import/App/dxf.h
+++ b/src/Mod/Import/App/dxf.h
@@ -20,6 +20,7 @@
 #include <cmath>
 
 #include <Base/Vector3D.h>
+#include <Mod/Import/ImportGlobal.h>
 
 //Following is required to be defined on Ubuntu with OCC 6.3.1
 #ifndef HAVE_IOSTREAM
diff --git a/src/Mod/Import/Gui/PreCompiled.h b/src/Mod/Import/Gui/PreCompiled.h
index 595e914fef..50728107ef 100644
--- a/src/Mod/Import/Gui/PreCompiled.h
+++ b/src/Mod/Import/Gui/PreCompiled.h
@@ -26,19 +26,6 @@
 
 #include <FCConfig.h>
 
-// Importing of App classes
-#ifdef FC_OS_WIN32
-# define ImportGuiExport __declspec(dllexport)
-# define ImportExport    __declspec(dllimport)
-# define PartExport      __declspec(dllimport)
-# define PartGuiExport   __declspec(dllimport)
-#else // for Linux
-# define ImportGuiExport
-# define ImportExport
-# define PartExport
-# define PartGuiExport
-#endif
-
 
 // here get the warnings of too long specifiers disabled (needed for VC6)
 #ifdef _MSC_VER