diff --git a/lib/comsat/services/pagerduty.rb b/lib/comsat/services/pagerduty.rb
index 167b7e0..621a513 100644
--- a/lib/comsat/services/pagerduty.rb
+++ b/lib/comsat/services/pagerduty.rb
@@ -1,9 +1,12 @@
 module Comsat
   class Pagerduty < Service::Base
-    def send_notice(data)
+    def send_alert(data)
       contact_pagerduty(:trigger, data)
     end
-    alias :send_alert :send_notice
+
+    def send_notice(data)
+      contact_pagerduty(:acknowledge, data)
+    end
 
     def send_resolve(data)
       contact_pagerduty(:resolve, data)