diff --git a/matlab/check.m b/matlab/check.m
index 59041c920..01d327c28 100644
--- a/matlab/check.m
+++ b/matlab/check.m
@@ -13,6 +13,7 @@ global it_
   
   options_ = set_default_option(options_,'noprint',0);
   options_ = set_default_option(options_,'order',1);  
+  options_ = set_default_option(options_,'linear',0);  
   options_ = set_default_option(options_,'dr_algo',0);  
 
   [dr, info] = resol(oo_.steady_state,1);