diff --git a/servant-jquery/src/Servant/JQuery.hs b/servant-jquery/src/Servant/JQuery.hs
index 729a3fd9..1d92ee32 100644
--- a/servant-jquery/src/Servant/JQuery.hs
+++ b/servant-jquery/src/Servant/JQuery.hs
@@ -37,6 +37,7 @@ generateJS req = "\n" <>
  <> "  $.ajax(\n"
  <> "    { url: " <> url <> "\n"
  <> "    , success: onSuccess\n"
+ <> "    , contentType: \"application/json\"\n"
  <> dataBody
  <> reqheaders
  <> "    , error: onError\n"