diff --git a/build_debian.sh b/build_debian.sh
index bc04a71800ce..8a3e4f90fa64 100755
--- a/build_debian.sh
+++ b/build_debian.sh
@@ -304,6 +304,7 @@ set /files/etc/sysctl.conf/net.ipv6.conf.all.accept_dad 0
 set /files/etc/sysctl.conf/net.ipv6.conf.eth0.accept_ra_defrtr 0
 
 set /files/etc/sysctl.conf/net.core.rmem_max 2097152
+set /files/etc/sysctl.conf/net.core.wmem_max 2097152
 " -r $FILESYSTEM_ROOT
 
 ## docker-py is needed by Ansible docker module