diff --git a/build_debian.sh b/build_debian.sh
index ed5d180859f..fa461a7ca41 100755
--- a/build_debian.sh
+++ b/build_debian.sh
@@ -301,6 +301,7 @@ set /files/etc/sysctl.conf/net.ipv6.conf.eth0.forwarding 0
 
 set /files/etc/sysctl.conf/net.ipv6.conf.default.accept_dad 0
 set /files/etc/sysctl.conf/net.ipv6.conf.all.accept_dad 0
+set /files/etc/sysctl.conf/net.ipv6.conf.eth0.accept_dad 0
 
 set /files/etc/sysctl.conf/net.ipv6.conf.eth0.accept_ra_defrtr 0