diff --git a/package/libnl/libnl.mk b/package/libnl/libnl.mk
index 7620cf721b..2a9f5a9a77 100644
--- a/package/libnl/libnl.mk
+++ b/package/libnl/libnl.mk
@@ -9,7 +9,7 @@ LIBNL_SITE = http://www.infradead.org/~tgr/libnl/files
 LIBNL_LICENSE = LGPLv2.1+
 LIBNL_LICENSE_FILES = COPYING
 LIBNL_INSTALL_STAGING = YES
-LIBNL_DEPENDENCIES = host-bison
+LIBNL_DEPENDENCIES = host-bison host-flex
 LIBNL_MAKE = $(MAKE1)
 LIBNL_BINARIES = class-add class-delete class-list classid-lookup cls-add \
 	cls-delete cls-list link-list pktloc-lookup qdisc-add qdisc-delete \