1 files changed, 1 insertions, 0 deletions

diff --git a/lex.l b/lex.l
index f9cc1ae..48a53b4 100644
--- a/lex.l
+++ b/lex.l
@@ -12,6 +12,7 @@
  */
 
 %{
+#include <string.h>
 #include "y.tab.h"
 int line_no = 1;