diff --git a/cloudbuild/external.pkr.hcl b/cloudbuild/external.pkr.hcl
index 9441074b..d6a0d3cd 100644
--- a/cloudbuild/external.pkr.hcl
+++ b/cloudbuild/external.pkr.hcl
@@ -78,8 +78,8 @@ build {
       "echo \"fs.inotify.max_queued_events=13107200\" | sudo tee -a /etc/sysctl.conf", # configure inotify for cisco xrd containers
       "echo \"kernel.pid_max=1048575\" | sudo tee -a /etc/sysctl.conf",              # configure pid_max for cisco 8000e containers
       "sudo modprobe br_netfilter",
-      "sudo echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables",
-      "sudo echo 1 > /proc/sys/net/ipv4/ip_forward",
+      "echo \"1\" > sudo tee /proc/sys/net/bridge/bridge-nf-call-iptables",
+      "echo \"1\" > sudo tee /proc/sys/net/ipv4/ip_forward",
       "sudo sysctl --system",
       "sudo sysctl -p",
     ]
diff --git a/cloudbuild/internal.pkr.hcl b/cloudbuild/internal.pkr.hcl
index 912d0d15..0b982feb 100644
--- a/cloudbuild/internal.pkr.hcl
+++ b/cloudbuild/internal.pkr.hcl
@@ -115,8 +115,8 @@ build {
       "sudo install packaging/systemd/* /etc/systemd/system",
       "sudo sed -i -e 's,/usr/bin/cri-dockerd,/usr/local/bin/cri-dockerd,' /etc/systemd/system/cri-docker.service",
       "sudo modprobe br_netfilter",
-      "sudo echo 1 > /proc/sys/net/bridge/bridge-nf-call-iptables",
-      "sudo echo 1 > /proc/sys/net/ipv4/ip_forward",
+      "echo \"1\" > sudo tee /proc/sys/net/bridge/bridge-nf-call-iptables",
+      "echo \"1\" > sudo tee /proc/sys/net/ipv4/ip_forward",
       "sudo sysctl --system",
       "sudo sysctl -p",
       "sudo systemctl daemon-reload",