diff --git a/googletest/include/gtest/gtest-matchers.h b/googletest/include/gtest/gtest-matchers.h
index 2bd3dcf..9fa34a0 100644
--- a/googletest/include/gtest/gtest-matchers.h
+++ b/googletest/include/gtest/gtest-matchers.h
@@ -106,7 +106,7 @@
 
 // An instance of a subclass of this knows how to describe itself as a
 // matcher.
-class MatcherDescriberInterface {
+class GTEST_API_ MatcherDescriberInterface {
  public:
   virtual ~MatcherDescriberInterface() {}