diff --git a/src/beamerinnerthememoloch.dtx b/src/beamerinnerthememoloch.dtx
index 9815a09..1a9bf91 100644
--- a/src/beamerinnerthememoloch.dtx
+++ b/src/beamerinnerthememoloch.dtx
@@ -409,8 +409,8 @@
 %
 %    \begin{macrocode}
 \define@key{beamerframe}{c}[true]{% centered
-  \beamer@frametopskip=0pt plus 1fill\relax%
-  \beamer@framebottomskip=0pt plus 1fill\relax%
+  \beamer@frametopskip=0pt plus 1fil\relax%
+  \beamer@framebottomskip=0pt plus 1fil\relax%
   \beamer@frametopskipautobreak=0pt plus .4\paperheight\relax%
   \beamer@framebottomskipautobreak=0pt plus .6\paperheight\relax%
   \def\beamer@initfirstlineunskip{}%
diff --git a/src/beamerouterthememoloch.dtx b/src/beamerouterthememoloch.dtx
index a0ce0af..ae52e98 100644
--- a/src/beamerouterthememoloch.dtx
+++ b/src/beamerouterthememoloch.dtx
@@ -178,7 +178,7 @@
   \begin{beamercolorbox}[%
       wd=\paperwidth,%
       leftskip=1.6ex,%
-      rightskip=\the\glueexpr 1.6ex plus 1fill\relax,%
+      rightskip=\the\glueexpr 1.6ex plus 1fil\relax,%
     ]{frametitle}%
     \usebeamerfont{frametitle}%
     \moloch@frametitlestrut@start%