1 files changed, 1 insertions, 0 deletions
diff --git a/sfinae.l b/sfinae.l
index 7c745ef..17bf28e 100644
--- a/sfinae.l
+++ b/sfinae.l
@@ -36,6 +36,7 @@ static int fail(const char* message)
 "static_assert"         return TOK_STATIC_ASSERT;
 "commit"                return TOK_COMMIT;
 "declare"               return TOK_DECLARE;
+"undeclare"             return TOK_UNDECLARE;
 "name"                  return TOK_NAME;
 "value_of"              return TOK_VALUE_OF;
 "void"                  return TOK_VOID;