diff --git a/salt/_modules/metalk8s_service_configuration.py b/salt/_modules/metalk8s_service_configuration.py
index 2bcb0c3165..7d3859923f 100644
--- a/salt/_modules/metalk8s_service_configuration.py
+++ b/salt/_modules/metalk8s_service_configuration.py
@@ -43,6 +43,12 @@ def get_service_conf(
             'Expected a ConfigMap name but got {}'.format(configmap_name)
         )
 
+    # rendering charts like prometheus-adapter & nginx-ingress-controller
+    # require the user to pass --service-config arguments but these charts
+    # don't yet have service configs, so let us handle this case differently
+    if configmap_name == 'unavailable':
+        return None
+
     try:
         manifest = __salt__[
             'metalk8s_kubernetes.get_object'