diff --git a/openappstack/cluster.py b/openappstack/cluster.py
index 549efafe3d488aafe7734023e1091354238e9fb2..d106dfff89ccaff31beaee13f1fc112af035b29d 100644
--- a/openappstack/cluster.py
+++ b/openappstack/cluster.py
@@ -182,9 +182,9 @@ class Cluster:
             unauthorizedStorage: true
             httpsHstsEnabled: false
         """
-        if self.acme_staging == True:
-            settings['nextcloud_extra_values'] = nextcloud_extra_values
-
+        if self.acme_staging:
+            settings['nextcloud_extra_values'] = \
+                yaml.load(nextcloud_extra_values)
 
         file_contents = yaml.safe_dump(settings, default_flow_style=False)
         log.debug(file_contents)