...

ptbposter/ptbposter-old-engines.clo

@@ -8,8 +8,9 @@
 \RequirePackage{textcomp}
 \RequirePackage{tgpagella}
 \RequirePackage{tgheros}
-\RequirePackage[ttdefault=true,scale=1.034]{AnonymousPro}
 \let\PTBdesignFont=\sffamily
+\RequirePackage[ttdefault=true,scale=1.034]{AnonymousPro}
+
 \ifPTB@serif
   \RequirePackage{qpxmath}
 \else
@@ -21,7 +22,7 @@
     or\MessageBreak 
     xelatex \jobname.tex
   }%
-  \@@end 
+  \expandafter\fi\expandafter\@@end
 \fi
 
 \endinput