diff --git a/ubuntu_install_binary_c.sh b/ubuntu_install_binary_c.sh
index 648f3a6a498e63e544190a987e49a7aeb581c07d..a96f1d038663ecdb65627c387cdc9ea178b607e2 100755
--- a/ubuntu_install_binary_c.sh
+++ b/ubuntu_install_binary_c.sh
@@ -85,14 +85,14 @@ function setup_bash
     then
         # set up bash paths : do this only once!
         echo '# binary_c paths do not alter' >> $BASHRC
+        echo "export BINARY_C=\"$BINARY_C\"" >> $BASHRC
         echo 'export LD_LIBRARY_PATH=$HOME/lib:$BINARY_C:$BINARY_C/src' >> $BASHRC # do this only once!
         echo 'export PATH=.:$HOME/bin:$HOME/.local/bin:$PATH' >> $BASHRC # do this only once!
-    echo "export BINARY_C=\"$BINARY_C\"" >> $BASHRC
 
     # psb, psbb, git functions etc. and completion of binary_c arguments
     printf '%s' '
 
-# source perlbrew
+# source perlbrewbinary_c
 source $HOME/perl5/perlbrew/etc/bashrc
 
 # function to switch to progs/stars/binary_c