diff --git a/lib/vmpooler/providers/vsphere.rb b/lib/vmpooler/providers/vsphere.rb
index 5d12470..be66e52 100644
--- a/lib/vmpooler/providers/vsphere.rb
+++ b/lib/vmpooler/providers/vsphere.rb
@@ -1241,7 +1241,7 @@ module Vmpooler
             events = event_manager.QueryEvents(filter: event_filter_spec)
           end
           # convert events to json, include only the fullFormattedMessage
-          messages = events.map { |e| e.fullFormattedMessage }
+          messages = events.map(&:fullFormattedMessage)
           JSON.generate(messages)
         end
       end