diff --git a/matlab/utilities/general/isestimation.m b/matlab/utilities/general/isestimation.m
index cf16f35c9f61a33aef1044d51e86b52019af77fd..9e17d4b03a70a847067ba735e87f69f51df1f434 100644
--- a/matlab/utilities/general/isestimation.m
+++ b/matlab/utilities/general/isestimation.m
@@ -21,6 +21,6 @@ function b = isestimation(option)
 
 b = false;
 
-if option.mode_compute || option.mh_replic
+if ischar(option.mode_compute) || option.mode_compute || option.mh_replic
     b = true;
 end
\ No newline at end of file