diff --git a/kalibrierschein/kalibrierschein.cls b/kalibrierschein/kalibrierschein.cls
index 78fe713383eca587e6cd2d092d047cf5c2907261..f95dd871222c1fae0e6a0dc1fd02d662246c0632 100644
--- a/kalibrierschein/kalibrierschein.cls
+++ b/kalibrierschein/kalibrierschein.cls
@@ -120,16 +120,6 @@
   \ks@tab\expandafter{\the\ks@tab#1}%
 }
 
-\newcommand*\ks@addTabLineX[1]{%
-  \def\@tempc{}%
-  \@for\@tempa:=#1\do{%
-    \edef\@tempb{\the\ks@tab\@tempc\noexpand\smash{%
-      \noexpand\parbox[t]{\hsize}{\noexpand\raggedright\@tempa}}}%
-    \ks@tab\expandafter{\@tempb}%
-    \def\@tempc{&}%
-  }%
-}
-
 \newcommand*\ks@addTabLine[1]{%
   \def\@tempc{}%
   \@for\@tempa:=#1\do{%
@@ -272,7 +262,10 @@
   \repeat
   \edef\@tempa{\noexpand\begin{longtable}{@{}\@tempa @{}}}%
   \expandafter\ks@add\expandafter{\@tempa}%
-  \ks@add{\\\toprule\multicolumn{\the\@tempcntb}{@{}c@{}}{Gas:~#1}\\\toprule}%
+  \ks@add{\\\toprule}%
+  \ifx\relax#1\relax\else
+    \ks@add{\multicolumn{\the\@tempcntb}{@{}c@{}}{Gas:~#1}\\\toprule}%
+  \fi
   \ks@add{#3}%
   \ks@add{\end{longtable}}%
 }
diff --git a/kalibrierschein/test-ks-KK.tex b/kalibrierschein/test-ks-KK.tex
index a196c2881403e2afeed3a7e16fca9b9b38affe65..e3fc52a775739c576b130908c189d240de5a046a 100644
--- a/kalibrierschein/test-ks-KK.tex
+++ b/kalibrierschein/test-ks-KK.tex
@@ -23,7 +23,7 @@ mbar&mbar&mbar&mbar&&\\\toprule\endhead
 8.768E-05&8.88E-05&1.00E-08&8.88E-05&1.3E-02&2.2E-02\\\bottomrule
 }
 
-\resultTable[H$_2$]{ 6 }{%
+\resultTable{ 6 }{%
 {\(p_{cal}\)}&{\(p_{ind}\)}&{\(p_r\)}&{\(p_{ind} - p_r\)}&{\(e\)}&{\(U(k=2)\)}\\
 mbar&mbar&mbar&mbar&&\\\toprule\endhead
 2.954E-08&3.27E-08&1.66E-09&3.10E-08&5.1E-02&2.6E-02\\