diff --git a/commonshrc b/commonshrc
index 9e73e14..a6d3de7 100644
--- a/commonshrc
+++ b/commonshrc
@@ -3,7 +3,7 @@
 
 export USER=`whoami`
 
-# . $HOME/etc/nonnixshellrc
+test -d /run/current-system || . $HOME/etc/nonnixshellrc
 
 # Customisation of Programs {{{1
 alias ls='ls --color=auto'