diff --git a/dockerfiles/tumbleweed.docker b/dockerfiles/tumbleweed.docker
index 6635402f8d0c096fbf9ec9bf25f646be0dbed67c..28c546f08c7ad8e10252f004e269c7b588141177 100644
--- a/dockerfiles/tumbleweed.docker
+++ b/dockerfiles/tumbleweed.docker
@@ -22,8 +22,8 @@ RUN zypper refresh && \
     useradd -u 30996 msk_jenkins && \
     ln -sfn /usr/lib64/libzmq.so.5 /usr/lib64/libzmq.so.3
 
-RUN echo "Defaults set_home" >> /etc/sudoers \
-    sudo -u msk_jenkins git config --global http.proxy http://xfelproxy.desy.de:3128 \
+RUN echo "Defaults set_home" >> /etc/sudoers
+RUN sudo -u msk_jenkins git config --global http.proxy http://xfelproxy.desy.de:3128 \
     sudo -u msk_jenkins git config --global https.proxy http://xfelproxy.desy.de:3128 \
 
 # NOTE: This last line (symlink for libzmq.so.3) is a hack for a bug in DOOCS serverlib, which has the version number hardcoded.