diff --git a/applications/present3D/ReaderWriterP3D.cpp b/applications/present3D/ReaderWriterP3D.cpp
index 84b76f34b..15e5af413 100644
--- a/applications/present3D/ReaderWriterP3D.cpp
+++ b/applications/present3D/ReaderWriterP3D.cpp
@@ -1425,7 +1425,7 @@ struct MyFindFileCallback : public osgDB::FindFileCallback
     }
 };
 
-class OSGDB_EXPORT MyReadFileCallback : public virtual osgDB::ReadFileCallback
+class MyReadFileCallback : public virtual osgDB::ReadFileCallback
 {
     public:
 
diff --git a/src/osgPlugins/p3d/ReaderWriterP3D.cpp b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
index cd044f600..6ffb86edb 100644
--- a/src/osgPlugins/p3d/ReaderWriterP3D.cpp
+++ b/src/osgPlugins/p3d/ReaderWriterP3D.cpp
@@ -1425,7 +1425,7 @@ struct MyFindFileCallback : public osgDB::FindFileCallback
     }
 };
 
-class OSGDB_EXPORT MyReadFileCallback : public virtual osgDB::ReadFileCallback
+class MyReadFileCallback : public virtual osgDB::ReadFileCallback
 {
     public: