diff --git a/src/PostgREST/ApiRequest.hs b/src/PostgREST/ApiRequest.hs
index 9cf82097e..5002454fe 100644
--- a/src/PostgREST/ApiRequest.hs
+++ b/src/PostgREST/ApiRequest.hs
@@ -124,8 +124,8 @@ userApiRequest schema req reqBody =
               Nothing -> PayloadParseError "All lines must have same number of fields"
               Just json -> PayloadJSON json)
             (CSV.decodeByName reqBody)
-        Right OpenAPI ->
-          PayloadParseError "Content-type not acceptable: application/openapi+json; charset=utf-8"
+        Right oa@OpenAPI ->
+          PayloadParseError $ "Content-type not acceptable: " <> cs (show oa)
         -- This is a Left value because form-urlencoded is not a content
         -- type which we ever use for responses, only something we handle
         -- just this once for requests