diff --git a/rsconf/component/vm_devbox.py b/rsconf/component/vm_devbox.py
index dd8be234..0bf6a8da 100644
--- a/rsconf/component/vm_devbox.py
+++ b/rsconf/component/vm_devbox.py
@@ -14,6 +14,7 @@
 import rsconf.systemd
 
 _DEFAULT_VAGRANT_CPUS = 4
+_DEFAULT_VAGRANT_MEMORY = 8192
 # Allowable pattern enforced by vagrant
 _VM_HOSTNAME_RE = "[a-z0-9][a-z0-9.-]*"
 _LIB_VIRT_SUB_D = "libvirt"
@@ -53,6 +54,9 @@ def _create_user_instances():
         z.timeout_start_min = jc[self.module_name].get("timeout_start_min", 15)
         z.vm_hostname = f"{self._user}.{jc[self.module_name].vm_parent_domain}"
         z.vagrant_cpus = jc[self.module_name].get("vagrant_cpus", _DEFAULT_VAGRANT_CPUS)
+        z.vagrant_memory = jc[self.module_name].get(
+            "vagrant_memory", _DEFAULT_VAGRANT_MEMORY
+        )
         rsconf.systemd.unit_prepare(
             self, self.j2_ctx, watch_files=(z.start_f, z.stop_f)
         )
diff --git a/rsconf/package_data/vm_devbox/start.sh.jinja b/rsconf/package_data/vm_devbox/start.sh.jinja
index 60ccb54e..5a4cf7f3 100644
--- a/rsconf/package_data/vm_devbox/start.sh.jinja
+++ b/rsconf/package_data/vm_devbox/start.sh.jinja
@@ -5,7 +5,7 @@ vm_devbox_create_vm() {
     if [[ -e Vagrantfile ]]; then
         return
     fi
-    curl '{{ rsconf_db.installer_url }}' | vagrant_dev_vm_devbox=1 vagrant_dev_cpus={{ this.vagrant_cpus }} bash -s vagrant-sirepo-dev '{{ this.vm_hostname}}'
+    curl '{{ rsconf_db.installer_url }}' | vagrant_dev_vm_devbox=1 vagrant_dev_cpus={{ this.vagrant_cpus }} vagrant_dev_memory={{ this.vagrant_memory }} bash -s vagrant-sirepo-dev '{{ this.vm_hostname}}'
 }
 
 vm_devbox_main() {
diff --git a/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/srv/vm_devbox_user-1/start b/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/srv/vm_devbox_user-1/start
index 8d814c46..3b6f65bc 100644
--- a/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/srv/vm_devbox_user-1/start
+++ b/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/srv/vm_devbox_user-1/start
@@ -5,7 +5,7 @@ vm_devbox_create_vm() {
     if [[ -e Vagrantfile ]]; then
         return
     fi
-    curl 'https://radia.run' | vagrant_dev_vm_devbox=1 vagrant_dev_cpus=8 bash -s vagrant-sirepo-dev 'user-1.radia.run'
+    curl 'https://radia.run' | vagrant_dev_vm_devbox=1 vagrant_dev_cpus=8 vagrant_dev_memory=8192 bash -s vagrant-sirepo-dev 'user-1.radia.run'
 }
 
 vm_devbox_main() {
diff --git a/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/vm_devbox_user-1.sh b/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/vm_devbox_user-1.sh
index 08a39dd7..5401e10b 100644
--- a/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/vm_devbox_user-1.sh
+++ b/tests/pkcli/build1_data/1.out/srv/host/v9.radia.run/vm_devbox_user-1.sh
@@ -4,7 +4,7 @@ rsconf_service_prepare 'vm_devbox_user-1' '/etc/systemd/system/vm_devbox_user-1.
 rsconf_install_access '700' 'vagrant' 'vagrant'
 rsconf_install_directory '/srv/vm_devbox_user-1'
 rsconf_install_access '500' 'vagrant' 'vagrant'
-rsconf_install_file '/srv/vm_devbox_user-1/start' '65860ba541b7c09caf1613945d6e46a4'
+rsconf_install_file '/srv/vm_devbox_user-1/start' '8978e325d8f77026b863c6cb2617f65e'
 rsconf_install_file '/srv/vm_devbox_user-1/stop' '94f5e7855deadc753f54580dfad70217'
 rsconf_install_access '444' 'root' 'root'
 rsconf_install_file '/etc/systemd/system/vm_devbox_user-1.service' '95beabb09a3e8a9977002d11ae4e47cd'