1 files changed, 2 insertions, 0 deletions
diff --git a/parser.l b/parser.l
index 5a55115d..586c21d1 100644
--- a/parser.l
+++ b/parser.l
@@ -167,6 +167,8 @@ static wchar_t num_esc(char *num)
 %}
 
 %option stack
+%option nounput
+%option noinput
 
 TOK     :?[a-zA-Z_][a-zA-Z0-9_]*|[+-]?[0-9]+
 ID_END  [^a-zA-Z0-9_]