diff --git a/deploy.yaml b/deploy.yaml
index ea07b5a..b5de569 100644
--- a/deploy.yaml
+++ b/deploy.yaml
@@ -36,6 +36,10 @@ areas:
                 message: Enter a valid MAC address
                 pass:
                   _regex: ^([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})$
+            events:
+              onChange:
+                - id: validate
+                  type: Validate
           - id: projectname
             type: TextInput
             properties: