diff --git a/utils/TableGen/DFAEmitter.cpp b/utils/TableGen/DFAEmitter.cpp
index 781cb06..a5cba04 100644
--- a/utils/TableGen/DFAEmitter.cpp
+++ b/utils/TableGen/DFAEmitter.cpp
@@ -376,11 +376,9 @@
   const ActionTuple &AT = Actions[A];
   if (AT.size() > 1)
     OS << "std::make_tuple(";
-  bool First = true;
+  ListSeparator LS;
   for (const auto &SingleAction : AT) {
-    if (!First)
-      OS << ", ";
-    First = false;
+    OS << LS;
     SingleAction.print(OS);
   }
   if (AT.size() > 1)