diff --git a/example/mu/example.dtx b/example/mu/example.dtx
index 4c21944df7856ab85fe1098b1f3f266daca5005a..ef55037a48b8460d493ebcd0e5fef8203813d6f4 100644
--- a/example/mu/example.dtx
+++ b/example/mu/example.dtx
@@ -65,7 +65,7 @@
   main=english, %% By using `czech` or `slovak` as the main locale
                 %% instead of `english`, you can typeset the thesis
                 %% in either Czech or Slovak, respectively.
-%</econ,fi,fsps,fss,law,med,ped,phil>
+%</econ,fi,fsps,fss,law,med,ped,phil,sci>
   english, german, russian, czech, slovak %% The additional keys allow
 ]{babel}        %% foreign texts to be typeset as follows:
 %%