diff --git a/src/Horse.Jhonson.pas b/src/Horse.Jhonson.pas
index 4fe8de4..6a6b76d 100644
--- a/src/Horse.Jhonson.pas
+++ b/src/Horse.Jhonson.pas
@@ -39,7 +39,7 @@ procedure Middleware(Req: THorseRequest; Res: THorseResponse; Next: {$IF DEFINED
 var
   LJSON: {$IF DEFINED(FPC)}TJsonData{$ELSE}TJSONValue{$ENDIF};
 begin
-  if (Req.MethodType in [mtPost, mtPut, mtPatch]) and (Req.RawWebRequest.ContentType = 'application/json') then
+  if (Req.MethodType in [mtPost, mtPut, mtPatch]) and (Req.RawWebRequest.ContentType.Contains('application/json')) then
   begin
     try
       LJSON := {$IF DEFINED(FPC)} GetJSON(Req.Body) {$ELSE}TJSONObject.ParseJSONValue(Req.Body){$ENDIF};