diff --git a/docs/vhost-user-blk-testing.md b/docs/vhost-user-blk-testing.md
index 6d496d39d..c56bed8fb 100644
--- a/docs/vhost-user-blk-testing.md
+++ b/docs/vhost-user-blk-testing.md
@@ -73,7 +73,7 @@ VMs run in client mode. They connect to the socket created by the `dpdkvhostuser
 # From the test terminal. We need to create one vhost-user-blk device for the --disk.
 ./cloud-hypervisor \
         --cpus boot=4 \
-        --memory size=1024M,hugepages=on \
+        --memory size=1024M,hugepages=on,shared=true \
         --kernel linux/arch/x86/boot/compressed/vmlinux.bin \
         --cmdline "console=ttyS0 root=/dev/vda1 rw iommu=off" \
         --disk path=images/focal-server-cloudimg-amd64.raw vhost_user=true,socket=/var/tmp/vhost.1,num_queues=4,queue_size=128 \
diff --git a/docs/vhost-user-net-testing.md b/docs/vhost-user-net-testing.md
index 704fd61d8..331e60801 100644
--- a/docs/vhost-user-net-testing.md
+++ b/docs/vhost-user-net-testing.md
@@ -76,7 +76,7 @@ VMs run in client mode. They connect to the socket created by the `dpdkvhostuser
 # From one terminal. We need to give the cloud-hypervisor binary the NET_ADMIN capabilities for it to set TAP interfaces up on the host.
 ./cloud-hypervisor \
         --cpus boot=2 \
-        --memory size=512M,hugepages=on   \
+        --memory size=512M,hugepages=on,shared=true \
         --kernel vmlinux \
         --cmdline "console=ttyS0 console=hvc0 root=/dev/vda1 rw" \
         --disk path=focal-server-cloudimg-amd64.raw   \
@@ -85,7 +85,7 @@ VMs run in client mode. They connect to the socket created by the `dpdkvhostuser
 # From another terminal. We need to give the cloud-hypervisor binary the NET_ADMIN capabilities for it to set TAP interfaces up on the host.
 ./cloud-hypervisor \
         --cpus boot=2 \
-        --memory size=512M,hugepages=on   \
+        --memory size=512M,hugepages=on,shared=true \
         --kernel vmlinux \
         --cmdline "console=ttyS0 console=hvc0 root=/dev/vda1 rw" \
         --disk path=focal-server-cloudimg-amd64.raw   \