diff --git a/antiope-s3.cabal b/antiope-s3.cabal
--- a/antiope-s3.cabal
+++ b/antiope-s3.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.2
 
 name:               antiope-s3
-version:            7.0.3
+version:            7.0.4
 synopsis:           Please see the README on Github at <https://github.com/arbor/antiope#readme>
 description:        Please see the README on Github at <https://github.com/arbor/antiope#readme>.
 category:           Services
diff --git a/src/Antiope/S3/Messages.hs b/src/Antiope/S3/Messages.hs
--- a/src/Antiope/S3/Messages.hs
+++ b/src/Antiope/S3/Messages.hs
@@ -63,7 +63,7 @@
 instance ToJSON S3Message where
   toJSON msg = Aeson.object
     [ "eventTime" .= eventTime msg
-    , "eventName" .= T.intercalate ":" ["s3", eventType (eventName msg), action (eventName msg)]
+    , "eventName" .= T.intercalate ":" [eventType (eventName msg), action (eventName msg)]
     , "s3"        .= Aeson.object
                       [ "bucket"    .= object [ "name" .= toText (bucket msg)]
                       , "object"    .= object