diff --git a/mu-protobuf.cabal b/mu-protobuf.cabal
--- a/mu-protobuf.cabal
+++ b/mu-protobuf.cabal
@@ -1,5 +1,5 @@
 name:          mu-protobuf
-version:       0.4.0.0
+version:       0.4.0.1
 synopsis:
   Protocol Buffers serialization and gRPC schema import for Mu microservices
 
diff --git a/test/ProtoBuf.hs b/test/ProtoBuf.hs
--- a/test/ProtoBuf.hs
+++ b/test/ProtoBuf.hs
@@ -42,6 +42,17 @@
   = '[ 'AnnField "gender" "male"   ('ProtoBufId 1 '[])
      , 'AnnField "gender" "female" ('ProtoBufId 2 '[])
      , 'AnnField "gender" "nb"     ('ProtoBufId 3 '[])
+     , 'AnnField "gender" "gender0" ('ProtoBufId 4 '[])
+     , 'AnnField "gender" "gender1" ('ProtoBufId 5 '[])
+     , 'AnnField "gender" "gender2" ('ProtoBufId 6 '[])
+     , 'AnnField "gender" "gender3" ('ProtoBufId 7 '[])
+     , 'AnnField "gender" "gender4" ('ProtoBufId 8 '[])
+     , 'AnnField "gender" "gender5" ('ProtoBufId 9 '[])
+     , 'AnnField "gender" "gender6" ('ProtoBufId 10 '[])
+     , 'AnnField "gender" "gender7" ('ProtoBufId 11 '[])
+     , 'AnnField "gender" "gender8" ('ProtoBufId 12 '[])
+     , 'AnnField "gender" "gender9" ('ProtoBufId 13 '[])
+     , 'AnnField "gender" "unspecified" ('ProtoBufId 14 '[])
      , 'AnnField "address" "postcode" ('ProtoBufId 1 '[])
      , 'AnnField "address" "country"  ('ProtoBufId 2 '[])
      , 'AnnField "person" "firstName" ('ProtoBufId 1 '[])