diff --git a/src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini b/src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini
index a2c08e75307..f5d44e68556 100644
--- a/src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini
+++ b/src/ceph-volume/ceph_volume/tests/functional/lvm/tox.ini
@@ -39,7 +39,7 @@ changedir=
 commands=
   git clone -b {env:CEPH_ANSIBLE_BRANCH:master} --single-branch https://github.com/ceph/ceph-ansible.git {envdir}/tmp/ceph-ansible
 
-  vagrant up --no-provision {posargs:--provider=virtualbox}
+  vagrant up {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --no-provision {posargs:--provider=virtualbox}
   bash {toxinidir}/../scripts/generate_ssh_config.sh {changedir}
 
   # create logical volumes to test with on the vms
@@ -58,7 +58,7 @@ commands=
   testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {envdir}/tmp/ceph-ansible/tests/functional/tests
 
   # reboot all vms
-  vagrant reload --no-provision
+  vagrant reload {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --no-provision
 
   # retest to ensure cluster came back up correctly after rebooting
   testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {envdir}/tmp/ceph-ansible/tests/functional/tests
@@ -69,4 +69,4 @@ commands=
   # retest to ensure cluster came back up correctly
   testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {envdir}/tmp/ceph-ansible/tests/functional/tests
 
-  vagrant destroy --force
+  vagrant destroy {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --force
diff --git a/src/ceph-volume/ceph_volume/tests/functional/simple/tox.ini b/src/ceph-volume/ceph_volume/tests/functional/simple/tox.ini
index e8e62dc1279..21d9c3a709f 100644
--- a/src/ceph-volume/ceph_volume/tests/functional/simple/tox.ini
+++ b/src/ceph-volume/ceph_volume/tests/functional/simple/tox.ini
@@ -36,7 +36,7 @@ changedir=
 commands=
   git clone -b {env:CEPH_ANSIBLE_BRANCH:master} --single-branch https://github.com/ceph/ceph-ansible.git {envdir}/tmp/ceph-ansible
 
-  vagrant up --no-provision {posargs:--provider=virtualbox}
+  vagrant up {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --no-provision {posargs:--provider=virtualbox}
   bash {toxinidir}/../scripts/generate_ssh_config.sh {changedir}
 
   # use ceph-ansible to deploy a ceph cluster on the vms
@@ -52,7 +52,7 @@ commands=
   ansible-playbook -vv -i {changedir}/hosts {changedir}/test.yml
 
   # reboot all vms
-  vagrant reload --no-provision
+  vagrant reload {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --no-provision
 
   # wait 2 minutes for services to be ready
   sleep 120
@@ -60,4 +60,4 @@ commands=
   # retest to ensure cluster came back up correctly after rebooting
   testinfra -n 4 --sudo -v --connection=ansible --ansible-inventory={changedir}/hosts {envdir}/tmp/ceph-ansible/tests/functional/tests
 
-  vagrant destroy --force
+  vagrant destroy {env:VAGRANT_GLOBAL_EXTRA_FLAGS:""} --force