diff --git a/dfg/dfgpdata.sty b/dfg/dfgpdata.sty
index 6852557..2a198a8 100644
--- a/dfg/dfgpdata.sty
+++ b/dfg/dfgpdata.sty
@@ -40,9 +40,8 @@ Applicant\if@sites\ifnum\the@PIs>1{s}\fi\fi\ \deu{(Antragsteller)}}%
 \ifdeutsch Arbeitsgebiet\else Fields of work\fi:  \prop@gen@areas}
 \newcommand\dfgprojpapers[2][]{\prop@paperlist[#1]{#2}}
 \ifdeutsch
-\newcommand\prop@count[1]{\ifcase #1 null\or ein\or zwei\or drei\or vier\or f"unf\or sechs\or sieben\or
+\renewcommand\prop@count[1]{\ifcase #1 null\or ein\or zwei\or drei\or vier\or f"unf\or sechs\or sieben\or
   acht\or neun\or zehn\or elf\or zw"olf\else#1\fi}
-
 \renewcommand\prop@of@pages[2]{Seite~#1\ifofpage~von~#2\fi}
 \renewcommand\wp@mk@title[1]{Arbeitspaket {#1}}
 \renewcommand\wp@label[1]{AP{#1}}
diff --git a/dfg/dfgproposal.dtx b/dfg/dfgproposal.dtx
index ee41aa7..d8b1c0e 100644
--- a/dfg/dfgproposal.dtx
+++ b/dfg/dfgproposal.dtx
@@ -511,9 +511,8 @@ Applicant\if@sites\ifnum\the@PIs>1{s}\fi\fi\ \deu{(Antragsteller)}}%
 %    \begin{macrocode}
 %<*pdata>
 \ifdeutsch
-\newcommand\prop@count[1]{\ifcase #1 null\or ein\or zwei\or drei\or vier\or f"unf\or sechs\or sieben\or
+\renewcommand\prop@count[1]{\ifcase #1 null\or ein\or zwei\or drei\or vier\or f"unf\or sechs\or sieben\or
   acht\or neun\or zehn\or elf\or zw"olf\else#1\fi}
-
 \renewcommand\prop@of@pages[2]{Seite~#1\ifofpage~von~#2\fi}
 \renewcommand\wp@mk@title[1]{Arbeitspaket {#1}}
 \renewcommand\wp@label[1]{AP{#1}}
diff --git a/dfg/dfgproposal.pdf b/dfg/dfgproposal.pdf
index ca38bd0..bd1342b 100644
Binary files a/dfg/dfgproposal.pdf and b/dfg/dfgproposal.pdf differ
diff --git a/dfg/examples/proposal/proposal.pdf b/dfg/examples/proposal/proposal.pdf
index 371fcd0..0e9bbc1 100644
Binary files a/dfg/examples/proposal/proposal.pdf and b/dfg/examples/proposal/proposal.pdf differ
diff --git a/dfg/examples/report/finalreport.pdf b/dfg/examples/report/finalreport.pdf
index 745a747..cb32c31 100644
Binary files a/dfg/examples/report/finalreport.pdf and b/dfg/examples/report/finalreport.pdf differ
diff --git a/dfg/examples/report/finalreport.tex b/dfg/examples/report/finalreport.tex
index 9a3df0e..e09637e 100644
--- a/dfg/examples/report/finalreport.tex
+++ b/dfg/examples/report/finalreport.tex
@@ -10,6 +10,7 @@
 % tell the class that this is the proposal acronym
 \input{WApersons}
 \begin{document}
+\providecommand\ifprefchar[2]{}% fix biblatex
 
 \begin{center}\color{red}\huge
   This mock proposal is just an example for \texttt{dfgreporting.cls} it reflects the
diff --git a/dfg/examples/simple-proposal/proposal.pdf b/dfg/examples/simple-proposal/proposal.pdf
index 56c0fd3..435c97a 100644
Binary files a/dfg/examples/simple-proposal/proposal.pdf and b/dfg/examples/simple-proposal/proposal.pdf differ