diff --git a/roles/installer/templates/execution_environments.py.j2 b/roles/installer/templates/execution_environments.py.j2
index 4774b422..e8a2789a 100644
--- a/roles/installer/templates/execution_environments.py.j2
+++ b/roles/installer/templates/execution_environments.py.j2
@@ -3,4 +3,4 @@ GLOBAL_JOB_EXECUTION_ENVIRONMENTS = [
     {'name': '{{ item.name }}' , 'image': '{{ item.image }}'},
 {% endfor %}
 ]
-CONTROL_PLANE_EXECUTION_ENVIRONMENT = {{ control_plane_ee_image }}
+CONTROL_PLANE_EXECUTION_ENVIRONMENT = '{{ control_plane_ee_image }}'