diff --git a/deployment-alpha/overlays/test/mapping.yaml b/deployment-alpha/overlays/test/mapping.yaml
index a5b5e2a0..29d3a430 100644
--- a/deployment-alpha/overlays/test/mapping.yaml
+++ b/deployment-alpha/overlays/test/mapping.yaml
@@ -4,4 +4,4 @@ metadata:
   name: treetracker-web-map-client-mapping-alpha
   namespace: webmap
 spec:
-  host: alpha-test.treetracker.org
\ No newline at end of file
+  hostname: alpha-test.treetracker.org
\ No newline at end of file