diff --git a/CELbeamer.cls b/CELbeamer.cls
index a018c9c..1902663 100644
--- a/CELbeamer.cls
+++ b/CELbeamer.cls
@@ -111,7 +111,7 @@
 \RequirePackage{helvet}
 \RequirePackage[scaled=.92]{beramono}
 \RequirePackage{libertineRoman}
-
+\RequirePackage{lmodern}
 % Semibold
 \DeclareRobustCommand{\sbseries}{\fontseries{sb}\selectfont}
 \DeclareTextFontCommand{\textsb}{\sbseries}