diff --git a/cel-thesis.cls b/cel-thesis.cls
index dc3b266..c1f5448 100644
--- a/cel-thesis.cls
+++ b/cel-thesis.cls
@@ -37,7 +37,7 @@
 \thesisTitle{Random Thesis Title}
 \thesisType{Master Thesis Type}
 \thesisAuthor{John Doe}
-\thesisAdvisor{Dr.-Ing. Holger Jäkel}
+\thesisAdvisor{Dr.-Ing. Holger J\"akel}
 \thesisHeadOfInstitute{N. N.}
 \thesisSupervisor{Super-Assi Deluxe M.Sc.}
 \thesisStartDate{dd.mm.yyyy}