diff --git a/handlers/insert.go b/handlers/insert.go
index c4654b9..8039505 100644
--- a/handlers/insert.go
+++ b/handlers/insert.go
@@ -43,7 +43,7 @@ func (h *Handler) PostMembres(c echo.Context) error {
 		}
 	default:
 		response.StatusCode = http.StatusBadRequest
-		response.Message = "Invalid Content-Type"
+		response.Message = "Invalid Content-Type: Please use application/json or text/csv"
 		return c.JSON(response.StatusCode, response)
 	}