diff --git a/libIDL.spec b/libIDL.spec
index 818d201..75e75fc 100644
--- a/libIDL.spec
+++ b/libIDL.spec
@@ -10,7 +10,7 @@ BuildRoot: %{_tmppath}/%{name}-%{version}-root
 BuildRequires: pkgconfig >= 0.8
 BuildRequires: glib2-devel >= 2.0
 BuildRequires: automake14 libtool autoconf
-BuildRequires: flex
+BuildRequires: flex bison
 
 %description
 libIDL is a library for parsing IDL (Interface Definition Language). 
@@ -77,7 +77,7 @@ rm -rf %{buildroot}
 
 %changelog
 * Fri Jun  9 2006 Matthias Clasen <mclasen@redhat.com> - 0.8.6-5
-- Rebuild
+- Fix missing BuildRequires
 
 * Mon Jun  5 2006 Matthias Clasen <mclasen@redhat.com> - 0.8.6-4
 - Fix missing BuildRequires