diff --git a/clang/include/clang/ASTMatchers/ASTMatchers.h b/clang/include/clang/ASTMatchers/ASTMatchers.h
--- a/clang/include/clang/ASTMatchers/ASTMatchers.h
+++ b/clang/include/clang/ASTMatchers/ASTMatchers.h
@@ -145,6 +145,7 @@
 using NestedNameSpecifierMatcher = internal::Matcher<NestedNameSpecifier>;
 using NestedNameSpecifierLocMatcher = internal::Matcher<NestedNameSpecifierLoc>;
 using CXXCtorInitializerMatcher = internal::Matcher<CXXCtorInitializer>;
+using TemplateArgumentMatcher = internal::Matcher<TemplateArgument>;
 using TemplateArgumentLocMatcher = internal::Matcher<TemplateArgumentLoc>;
 /// @}