diff --git a/presentation/projektor.sty b/presentation/projektor.sty
index 060b031..ac31485 100644
--- a/presentation/projektor.sty
+++ b/presentation/projektor.sty
@@ -35,6 +35,8 @@
     \setbeamercolor{progress bar}{bg=alerted text.fg!20!black!90}
     \setbeamercolor{frametitle}{bg=black!92}
     \setbeamercolor*{palette primary}{use=structure,fg=structure.fg}
+\else
+    \setlength{\metropolis@progressinheadfoot@linewidth}{0.8pt}
 \fi
 
 % Footer