diff --git a/packages/toolchain/devel/binutils/meta b/packages/toolchain/devel/binutils/meta
index d858800b64..a16ae3aef2 100644
--- a/packages/toolchain/devel/binutils/meta
+++ b/packages/toolchain/devel/binutils/meta
@@ -27,7 +27,7 @@ PKG_SITE="http://www.gnu.org/software/binutils/binutils.html"
 #PKG_URL="http://ftp.gnu.org/gnu/binutils/$PKG_NAME-$PKG_VERSION.tar.bz2"
 PKG_URL="ftp://ftp.kernel.org/pub/linux/devel/binutils/$PKG_NAME-$PKG_VERSION.tar.bz2"
 PKG_DEPENDS=""
-PKG_BUILD_DEPENDS="ccache linux-headers gmp mpfr ppl cloog-ppl libelf"
+PKG_BUILD_DEPENDS="ccache flex linux-headers gmp mpfr ppl cloog-ppl libelf"
 PKG_PRIORITY="optional"
 PKG_SECTION="toolchain/devel"
 PKG_SHORTDESC="binutils: A GNU collection of binary utilities"