diff --git a/base/km3sim:4.10.05 b/base/km3sim:4.10.05
index 206863a95f717c840a714db25c97736497242b3e..247e79982829faec82e28210399e465661f080bd 100644
--- a/base/km3sim:4.10.05
+++ b/base/km3sim:4.10.05
@@ -44,7 +44,7 @@ RUN which cmake && cmake --version
      cd .. && \
      mv obj /opt/root-$ROOT_VERSION && \
      rm -rf /tmp/root* && \
-     echo "cd /opt/root-$ROOT_VERSION && source bin/thisroot.sh && cd" >> /etc/profile.d/root_env.sh && cd
+     echo "cd /opt/root-$ROOT_VERSION && source bin/thisroot.sh && cd -" >> /etc/profile.d/root_env.sh && cd
 
     
 # Make Geant4
@@ -53,4 +53,4 @@ RUN which cmake && cmake --version
     mkdir geant4.10.05_build && mkdir /usr/local/geant4.10.05_install && cd geant4.10.05_build && \
     cmake -DCMAKE_INSTALL_PREFIX=/usr/local/geant4.10.05_install -DGEANT4_USE_GDML=ON -DGEANT4_INSTALL_DATA=ON -DXERCESC_INCLUDE_DIR=/usr/include/xercesc/ -DXERCESC_LIBRARY=/usr/lib64/ ../geant4.10.05 && \
     make -j4 > make.log && make install > make_install.log && cd .. && rm -rf geant4.10.05_build geant4.10.05
- RUN echo "export G4DIR=/usr/local/geant4.10.05_install" >> /etc/bashrc
\ No newline at end of file
+ RUN echo "export G4DIR=/usr/local/geant4.10.05_install" >> /etc/bashrc