diff --git a/matlab/print_expectations.m b/matlab/print_expectations.m
index da23994e5..099933132 100644
--- a/matlab/print_expectations.m
+++ b/matlab/print_expectations.m
@@ -378,3 +378,5 @@ fclose(fid);
 fprintf('Expectation dseries expression is saved in %s.\n', filename);
 
 skipline();
+
+rehash