diff --git a/ks-common.clo b/ks-common.clo
index 2d0a04eb4ba57bc2de70948b0ef0930b5720324c..d983414c4ce328397fa5f601890634179cf37630 100644
--- a/ks-common.clo
+++ b/ks-common.clo
@@ -8,7 +8,8 @@
   \unitlength=1bp %
   \AtPageLowerLeft{%
     %------------- Kopf ------------
-    \put(68,763){\includegraphics[width=99bp]{PTB-Logo.pdf}}
+    \put(68,763){\textcolor{PTBcolor}{%
+      \includegraphics[width=99bp]{PTB-logo-A.mps}}}
     \put(318,708){\makebox(0,0)[c]{\ks@nationalEmblem}}
     \put(67,750){\footnotesize 
       \resizebox{157bp}{!}{Physikalisch-Technische Bundesanstalt}}