diff --git a/lib/google_calendar.rb b/lib/google_calendar.rb
index cf50f6be41..c9e4870720 100644
--- a/lib/google_calendar.rb
+++ b/lib/google_calendar.rb
@@ -49,7 +49,7 @@ def publish_as(who, details)
     @logger.info("Attempting to create event for " + who)
     @logger.debug details.to_yaml
 
-    event = Google::Apis::CalendarV3::Event.new(details.deep_symbolize_keys)
+    event = Google::Apis::CalendarV3::Event.new(**details.deep_symbolize_keys)
     ret = @calendar.insert_event(
         who,
         event,