diff --git a/clang/lib/AST/TextNodeDumper.cpp b/clang/lib/AST/TextNodeDumper.cpp
index f287e96..c15713b 100644
--- a/clang/lib/AST/TextNodeDumper.cpp
+++ b/clang/lib/AST/TextNodeDumper.cpp
@@ -1366,6 +1366,8 @@
       break;
     }
   }
+  if (D->isParameterPack())
+    OS << " pack";
 }
 
 void TextNodeDumper::VisitBindingDecl(const BindingDecl *D) {