diff --git a/roles/nuancier/templates/nuancier-lite.cfg b/roles/nuancier/templates/nuancier-lite.cfg
index f25b8863c8..d372cd570d 100644
--- a/roles/nuancier/templates/nuancier-lite.cfg
+++ b/roles/nuancier/templates/nuancier-lite.cfg
@@ -6,7 +6,7 @@ import os
 SECRET_KEY='{{ nuancier_secret_key }}'
 
 ### url to the database server:
-DB_URL='postgres://{{ nuancier_db_user }}:{{ nuancier_db_pass }}@{{ nuancier_db_host }}/{{ nuancier_db_name }}'
+DB_URL='postgresql://{{ nuancier_db_user }}:{{ nuancier_db_pass }}@{{ nuancier_db_host }}/{{ nuancier_db_name }}'
 
 ### The FAS groups in which the admin of nuancier-lite are
 ### This can either be a single group or multiple, defined between
diff --git a/roles/nuancier/templates/nuancier_admin.cfg b/roles/nuancier/templates/nuancier_admin.cfg
index 42e094c4cb..95288741ec 100644
--- a/roles/nuancier/templates/nuancier_admin.cfg
+++ b/roles/nuancier/templates/nuancier_admin.cfg
@@ -6,7 +6,7 @@ import os
 SECRET_KEY='{{ nuancier_secret_key }}'
 
 ### url to the database server:
-DB_URL='postgres://{{ nuancier_db_admin_user }}:{{ nuancier_db_admin_pass }}@{{ nuancier_db_host }}/{{ nuancier_db_name }}'
+DB_URL='postgresql://{{ nuancier_db_admin_user }}:{{ nuancier_db_admin_pass }}@{{ nuancier_db_host }}/{{ nuancier_db_name }}'
 
 ### The FAS groups in which the admin of nuancier-lite are
 ### This can either be a single group or multiple, defined between