shell script not performed completely

Hi,
I am using debian stretch.

In my user account I created a shell script to define my aliases
/home/<my accountname>/bash_aliases
that is called by the bashrc script.
That works well.

To use the same aliases when working as root (admin) user I put this script call to the end of root bashrc script.
To ensure it is called I put an echo command into the first line of bash_aliases.
The script is called but the aliases defined there do obviously not exist.

What is wrong, who can help?

Thanks for your help

Michel