diff --git a/ptbposter/ptbposter-tcb.sty b/ptbposter/ptbposter-tcb.sty
index b2b42e357b6058cc2b13e9b170b6b4acce106727..17426afb3a7f02ad8971388bbd13a0c380d3f048 100644
--- a/ptbposter/ptbposter-tcb.sty
+++ b/ptbposter/ptbposter-tcb.sty
@@ -1,10 +1,10 @@
 
-\ProvidesPackage{ptbposter-tcb}[2020/02/19 v0.1e ptbposter/tcolorbox (RN)]
+\ProvidesPackage{ptbposter-tcb}[2020/02/28 v0.1f ptbposter/tcolorbox (RN)]
 
 \newcommand*\PTB@posterSet{%
   columns=3,rows=5,spacing=\PTB@texthsep,showframe=false,}
 \newcommand*\posterSet[1]{%
-  \g@addto@macro\PTB@posterSet{#1}%
+  \g@addto@macro\PTB@posterSet{#1,}%
 }
 
 \RequirePackage{kvoptions}[2009/07/17]
diff --git a/ptbposter/tcb-example1.pdf b/ptbposter/tcb-example1.pdf
index ceb8b151008572dbe9129823b3061a45743de213..6a145280e6f50ea7a9632a03f21d6a21c5b4fd13 100644
Binary files a/ptbposter/tcb-example1.pdf and b/ptbposter/tcb-example1.pdf differ
diff --git a/ptbposter/tcb-example1.tex b/ptbposter/tcb-example1.tex
index 1d403836b69c0a5b89097cbe1666e254ece22221..4a2cbae2eb108f3ee1ee9c1daf89877b567c425a 100644
--- a/ptbposter/tcb-example1.tex
+++ b/ptbposter/tcb-example1.tex
@@ -22,7 +22,9 @@
 %\logo{Logo754.pdf}
 
 \colorlet{boxBackground}{OliveGreen!10}
-\posterSet{showframe=true,columns=3,rows=5}% columns,rows -> default 
+\posterSet{showframe=true,columns=3,rows=5}% columns,rows -> default
+
+\posterSet{spacing=0pt}
 
 \title{Poster-Test (\texttt{tcolorbox}) -- Nr.~1}
 
@@ -60,7 +62,8 @@
     \begin{itemize}
       \item \verb|showframe=true\|false| % zur Orientierung
       \item \verb|columns=n|: Anzahl der Spalten
-      \item \verb|rows=m|: Anzahl der Zeilen
+      \item \verb|rows=n|: Anzahl der Zeilen
+      \item \verb|spacing=n|: Abstand zwischen den Boxen
     \end{itemize} \columnbreak
     \section{Boxparameter}
 \begin{verbatim}
diff --git a/ptbposter/tcb-example2.pdf b/ptbposter/tcb-example2.pdf
index 5acae3c004c48b53af96ade5b980fce65263a92a..67606bc4f47ce7ddbadb2dd3796125ca966e4eb6 100644
Binary files a/ptbposter/tcb-example2.pdf and b/ptbposter/tcb-example2.pdf differ