diff --git a/include/DataFrame/Vectors/VectorPtrView.h b/include/DataFrame/Vectors/VectorPtrView.h
index 7414f0903..e0254a0d0 100644
--- a/include/DataFrame/Vectors/VectorPtrView.h
+++ b/include/DataFrame/Vectors/VectorPtrView.h
@@ -688,7 +688,7 @@ class LIBRARY_API VectorPtrView {
 // ----------------------------------------------------------------------------
 
 template<typename T>
-class   VectorConstPtrView  {
+class LIBRARY_API VectorConstPtrView  {
 
 private:
 
diff --git a/include/DataFrame/Vectors/VectorView.h b/include/DataFrame/Vectors/VectorView.h
index bf3870795..9ff2ba09c 100644
--- a/include/DataFrame/Vectors/VectorView.h
+++ b/include/DataFrame/Vectors/VectorView.h
@@ -556,7 +556,7 @@ class LIBRARY_API VectorView {
 // ----------------------------------------------------------------------------
 
 template <typename T>
-class   VectorConstView  {
+class LIBRARY_API VectorConstView {
 
 public: