diff --git a/lib/event_sourcery/event_store/event_builder.rb b/lib/event_sourcery/event_store/event_builder.rb
index <HASH>..<HASH> 100644
--- a/lib/event_sourcery/event_store/event_builder.rb
+++ b/lib/event_sourcery/event_store/event_builder.rb
@@ -1,13 +1,12 @@
 module EventSourcery
   module EventStore
     class EventBuilder
-
       def initialize(event_type_serializer:)
         @event_type_serializer = event_type_serializer
       end
 
       def build(event_data)
-        @event_type_serializer.deserialize(event_data[:type]).new(event_data)
+        @event_type_serializer.deserialize(event_data.fetch(:type)).new(event_data)
       end
     end
   end
Type is a requirement so use fetch