diff --git a/ops/ops/interface_kube_control/provides.py b/ops/ops/interface_kube_control/provides.py
index 516874c..654421c 100644
--- a/ops/ops/interface_kube_control/provides.py
+++ b/ops/ops/interface_kube_control/provides.py
@@ -101,7 +101,7 @@ def set_dns_port(self, port) -> None:
 
     def set_has_external_cloud_provider(self, has_xcp) -> None:
         """Send indicator to remote units that an external cloud provider is in use."""
-        value = str(has_xcp).title()
+        value = str(has_xcp).lower()
         for relation in self.relations:
             relation.data[self.unit]["has-xcp"] = value