diff --git a/doc/linux.rst b/doc/linux.rst
index 086bc61d7120345ead47d85e3b222c393405f4c3..ce94f81e9a3187f2581fb31a4b579a51aa7b7636 100644
--- a/doc/linux.rst
+++ b/doc/linux.rst
@@ -255,3 +255,11 @@ To avoid problems with conda and using shared builders, consider creating the
 directory ``~gitlab-runner/.conda`` and touching the file
 ``environments.txt`` in that directory, setting a mode of ``444`` (i.e., make
 it read-only).
+
+
+Extra packages
+==============
+
+List of extra packages to ensure are installed on the shell environment:
+
+* rsync