diff --git a/include/osgPresentation/AnimationMaterial b/include/osgPresentation/AnimationMaterial
index fa924c250..b9e44bf7a 100644
--- a/include/osgPresentation/AnimationMaterial
+++ b/include/osgPresentation/AnimationMaterial
@@ -89,7 +89,7 @@ class OSGPRESENTATION_EXPORT AnimationMaterial : public virtual osg::Object
 };
 
 
-class AnimationMaterialCallback : public osg::NodeCallback
+class OSGPRESENTATION_EXPORT AnimationMaterialCallback : public osg::NodeCallback
 {
     public:
 
diff --git a/include/osgUtil/IncrementalCompileOperation b/include/osgUtil/IncrementalCompileOperation
index eae923f8b..437d43200 100644
--- a/include/osgUtil/IncrementalCompileOperation
+++ b/include/osgUtil/IncrementalCompileOperation
@@ -111,7 +111,7 @@ class OSGUTIL_EXPORT IncrementalCompileOperation : public osg::GraphicsOperation
             virtual bool compileCompleted(CompileSet* compileSet) = 0;
         };
 
-        class CompileSet : public osg::Referenced
+        class OSGUTIL_EXPORT CompileSet : public osg::Referenced
         {
         public: