diff --git a/source/mixer.rst b/source/mixer.rst
index 6d32730a..0f2bee5d 100644
--- a/source/mixer.rst
+++ b/source/mixer.rst
@@ -63,7 +63,7 @@ Mixing
                                                         # See 'OS Epoch' discussion for details
 
    You may include a ``CERT=/path/to/cert`` line which tells the chroot builder to insert the certificate
-   specified for the mix in ``<BUNDLE>/usr/share/clear/update-ca/``. This would be the certificate used
+   specified for the mix in ``/os-core-update/usr/share/clear/update-ca/``. This would be the certificate used
    by the software update client to verify the Manifest.MoM signature.
 
 #. **Generate the starting point for your Mix**. In your workspace, run::
@@ -211,4 +211,4 @@ releases in the new format.
 For the creation of a custom mix, the format version should start at '1',
 or some known number, and increment only when a compatibility breakage is
 introduced. Normal updates (updating a software package for example)
-do not require a format increment.
\ No newline at end of file
+do not require a format increment.