diff --git a/internal-lab-setup-assets/workshop-init.sh b/internal-lab-setup-assets/workshop-init.sh
index b1c8885..7fa9c37 100755
--- a/internal-lab-setup-assets/workshop-init.sh
+++ b/internal-lab-setup-assets/workshop-init.sh
@@ -13,8 +13,8 @@ chmod 0440 /etc/sudoers.d/clab
 echo "syntax on" > /home/clab/.vimrc
 
 # Required in some environments, like ours, to make clab happy
-/sbin/sysctl -w net.ipv6.conf.all.disable_ipv6=1
-/sbin/sysctl -w net.ipv6.conf.default.disable_ipv6=1
-/sbin/sysctl -w net.ipv6.conf.lo.disable_ipv6=1
+/sbin/sysctl -w net.ipv6.conf.all.disable_ipv6=1 2>/dev/null
+/sbin/sysctl -w net.ipv6.conf.default.disable_ipv6=1 2>/dev/null
+/sbin/sysctl -w net.ipv6.conf.lo.disable_ipv6=1 2>/dev/null
 
 /usr/sbin/sshd -D