diff --git a/beamerthemem.sty b/beamerthemem.sty
index b634f7c..437410f 100644
--- a/beamerthemem.sty
+++ b/beamerthemem.sty
@@ -72,7 +72,7 @@
 \ifxetexorluatex
   \usefonttheme{metropolis}
 \else
-  \PackageWarning{beamerthemem}{You need to compile with XeLaTeX for the Fira fonts.}
+  \PackageWarning{beamerthemem}{You need to compile with XeLaTeX or LuaLaTeX for the Fira fonts.}
 \fi
 
 %}}}