1 files changed, 5 insertions, 0 deletions
diff --git a/types.h b/types.h
index 4db0243..c522fb0 100644
--- a/types.h
+++ b/types.h
@@ -1,3 +1,8 @@
+/*
+  Copyright (C) 2019 Leo Tenenbaum.
+  This file is part of toc. toc is distributed under version 3 of the GNU General Public License, without any warranty whatsoever.
+  You should have received a copy of the GNU General Public License along with toc. If not, see <https://www.gnu.org/licenses/>.
+*/
 /* NOTE: make sure you edit copy.c when you make a change to expression-related types or type-related types in this file! */
 
 typedef int64_t Integer;