diff --git a/doc/030_preparing_a_new_repo.rst b/doc/030_preparing_a_new_repo.rst
index de3061f08..39a3a0744 100644
--- a/doc/030_preparing_a_new_repo.rst
+++ b/doc/030_preparing_a_new_repo.rst
@@ -86,10 +86,11 @@ command and enter the same password twice:
 
 .. warning::
 
-   On Linux, storing the backup repository on a CIFS (SMB) share is not
-   recommended due to compatibility issues. Either use another backend
-   or set the environment variable `GODEBUG` to `asyncpreemptoff=1`.
-   Refer to GitHub issue `#2659 <https://github.com/restic/restic/issues/2659>`_ for further explanations.
+   On Linux, storing the backup repository on a CIFS (SMB) share or backing up
+   data from a CIFS share is not recommended due to compatibility issues in
+   older Linux kernels. Either use another backend or set the environment
+   variable `GODEBUG` to `asyncpreemptoff=1`. Refer to GitHub issue
+   `#2659 <https://github.com/restic/restic/issues/2659>`_ for further explanations.
 
 SFTP
 ****