diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index 324ce79..c41cc04 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -693,7 +693,7 @@ void lastLeqMulti(Arena &arena, Node *root, std::span<Key> keys,
     FILE *file;
   };
 
-  fprintf(file, "digraph TreeSet {\n");
+  fprintf(file, "digraph ConflictSet {\n");
   if (node != nullptr) {
     DebugDotPrinter printer{file};
     fprintf(file, "\n");