diff --git a/matlab/set_prior.m b/matlab/set_prior.m
index 16e27f3f3..f94b25962 100644
--- a/matlab/set_prior.m
+++ b/matlab/set_prior.m
@@ -309,7 +309,4 @@ end
 
 % initialize persistent variables in priordens()
 priordens(xparam1,bayestopt_.pshape,bayestopt_.p6,bayestopt_.p7, ...
-          bayestopt_.p3,bayestopt_.p4,1);
-
-% Put bayestopt_ in matlab's workspace
-assignin('base','bayestopt_',bayestopt_);
\ No newline at end of file
+          bayestopt_.p3,bayestopt_.p4,1);
\ No newline at end of file