diff --git a/Folien/CEL_Beamer/templates/beamerthemekit.sty b/Folien/CEL_Beamer/templates/beamerthemekit.sty
index 957c6d1..5156209 100644
--- a/Folien/CEL_Beamer/templates/beamerthemekit.sty
+++ b/Folien/CEL_Beamer/templates/beamerthemekit.sty
@@ -14,6 +14,9 @@
 
 \beamertemplatenavigationsymbolsempty
 
+% math font with serif
+\usefonttheme[onlymath]{serif}
+
 \setbeamertemplate{title page}
 {
 \thispagestyle{empty}