diff --git a/configure.ac b/configure.ac
index e20dc64..49d704e 100755
--- a/configure.ac
+++ b/configure.ac
@@ -88,6 +88,7 @@
 AC_PROG_INSTALL
 AC_PROG_LIBTOOL
 AC_PROG_MAKE_SET
+AC_PROG_BISON
 AC_PROG_YACC
 AC_PROG_LEX
 AM_PROG_LEX