diff --git a/matlab/check.m b/matlab/check.m
index cc66dadd4..48c1ec4a0 100644
--- a/matlab/check.m
+++ b/matlab/check.m
@@ -1,4 +1,4 @@
-function result = check
+function [result,info] = check
 % function result = check
 % checks determinacy conditions by computing the eigenvalues
 %