diff --git a/defaults/main.yml b/defaults/main.yml
index e743ebcd..379c960d 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -29,6 +29,7 @@ keystone_pip_package_state: "latest"
 
 # Set installation method.
 keystone_install_method: "source"
+keystone_venv_python_executable: "{{ openstack_venv_python_executable | default('python2') }}"
 
 # Role standard API override this option in the OS variable files
 keystone_shibboleth_repo: {}
diff --git a/tasks/keystone_install.yml b/tasks/keystone_install.yml
index 5390d92e..c4cb886b 100644
--- a/tasks/keystone_install.yml
+++ b/tasks/keystone_install.yml
@@ -118,6 +118,7 @@
   import_role:
     name: "python_venv_build"
   vars:
+    venv_python_executable: "{{ keystone_venv_python_executable }}"
     venv_build_constraints: "{{ keystone_git_constraints }}"
     venv_build_distro_package_list: "{{ keystone_devel_distro_packages }}"
     venv_install_destination_path: "{{ keystone_bin | dirname }}"