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() {}
 
diff --git a/googletest/include/gtest/internal/gtest-param-util.h b/googletest/include/gtest/internal/gtest-param-util.h
index 4af22ca..c2ef6e3 100644
--- a/googletest/include/gtest/internal/gtest-param-util.h
+++ b/googletest/include/gtest/internal/gtest-param-util.h
@@ -654,7 +654,7 @@
 
     // Check for invalid characters
     for (std::string::size_type index = 0; index < name.size(); ++index) {
-      if (!isalnum(name[index]) && name[index] != '_')
+      if (!IsAlNum(name[index]) && name[index] != '_')
         return false;
     }