diff --git a/pacman/pacman.cfg b/pacman/pacman.cfg
index 028e0ce8f..e7f9e00ca 100644
--- a/pacman/pacman.cfg
+++ b/pacman/pacman.cfg
@@ -1,8 +1,10 @@
-# DO NOT EDIT
-# See spinnakermanchester.github.io/common_pages/Algorithms.html
+# DO NOT EDIT!
+# The are the default values
+# Edit the cfg in your home directory to change your preferences
+# Add / Edit a cfg in the run directory for script specific changes
 
-# Adds or overwrites values in SpiNNMachine/spinn_machine/spinn_machine.cfg
-# Which in turn adds or overwrites values in SpiNNUtils/spinn_utilities/spinn_utilities.cfg
+# Adds to values in SpiNNMachine/spinn_machine/spinn_machine.cfg
+# Which in turn adds to values in SpiNNUtils/spinn_utilities/spinn_utilities.cfg
 
 [Reports]