diff --git a/tools/nfdc/legacy-nfdc.hpp b/tools/nfdc/legacy-nfdc.hpp
index 9acb228..43e82c0 100644
--- a/tools/nfdc/legacy-nfdc.hpp
+++ b/tools/nfdc/legacy-nfdc.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014-2016,  Regents of the University of California,
+ * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -173,7 +173,7 @@
 void
 legacyNfdcUsage();
 
-int
+void
 legacyNfdcMain(ExecuteContext& ctx);
 
 } // namespace nfdc