diff --git a/include/osgShadow/ParallelSplitShadowMap b/include/osgShadow/ParallelSplitShadowMap
index 93d59ebeb..5c713634c 100644
--- a/include/osgShadow/ParallelSplitShadowMap
+++ b/include/osgShadow/ParallelSplitShadowMap
@@ -90,7 +90,7 @@ class OSGSHADOW_EXPORT ParallelSplitShadowMap :  public ShadowTechnique
         /**
          * you can overwrite the fragment shader if you like to modify it yourself, own fragment shader can be used
          */
-        class FragmentShaderGenerator : public osg::Referenced {
+        class OSGSHADOW_EXPORT FragmentShaderGenerator : public osg::Referenced {
             public:
                 /** 
                  * generate the GLSL fragement shader 
diff --git a/include/osgUtil/Optimizer b/include/osgUtil/Optimizer
index bf4939b0b..572d57acc 100644
--- a/include/osgUtil/Optimizer
+++ b/include/osgUtil/Optimizer
@@ -293,7 +293,7 @@ class OSGUTIL_EXPORT Optimizer
           * of duplicated and flatten individually.  This results in more static transforms
           * being removed, but also means that more data is generated, and as a result may
           * not always be the most appropriate flatten visitor to use.*/  
-        class FlattenStaticTransformsDuplicatingSharedSubgraphsVisitor : public BaseOptimizerVisitor
+        class OSGUTIL_EXPORT FlattenStaticTransformsDuplicatingSharedSubgraphsVisitor : public BaseOptimizerVisitor
         {
             public: