diff --git a/package/radvd/radvd.mk b/package/radvd/radvd.mk
index 64f755ddbb..88221875a3 100644
--- a/package/radvd/radvd.mk
+++ b/package/radvd/radvd.mk
@@ -8,7 +8,11 @@ RADVD_VERSION = 2.12
 RADVD_SOURCE = radvd-$(RADVD_VERSION).tar.xz
 RADVD_SITE = http://www.litech.org/radvd/dist
 RADVD_DEPENDENCIES = host-bison flex host-flex host-pkgconf
-RADVD_CONF_ENV = ac_cv_prog_cc_c99='-std=gnu99'
+# We need to ignore <linux/if_arp.h>, because radvd already includes
+# <net/if_arp.h>, which conflicts with <linux/if_arp.h>.
+RADVD_CONF_ENV = \
+	ac_cv_prog_cc_c99='-std=gnu99' \
+	ac_cv_header_linux_if_arp_h=no
 # For 0002-Don-t-force-fstack-protector-the-toolchain-might-lac.patch
 RADVD_AUTORECONF = YES
 RADVD_LICENSE = BSD-4-Clause-like