diff --git a/Source/kwsys/String.hxx.in b/Source/kwsys/String.hxx.in
index 424f61d39..4386c9eb7 100644
--- a/Source/kwsys/String.hxx.in
+++ b/Source/kwsys/String.hxx.in
@@ -25,7 +25,7 @@ namespace @KWSYS_NAMESPACE@
  * simply a subclass of this type with the same interface so that the
  * name is shorter in debugging symbols and error messages.
  */
-class @KWSYS_NAMESPACE@_EXPORT String: public @KWSYS_NAMESPACE@_stl::string
+class String: public @KWSYS_NAMESPACE@_stl::string
 {
   /** The original string type.  */
   typedef @KWSYS_NAMESPACE@_stl::string stl_string;