--- pkg-mgr-commands.tex~
+++ pkg-mgr-commands.tex
@@ -671,7 +671,8 @@
 \end{compactitem}
 
 The package manager shall take appropriate steps to ensure that its compression mechanisms behave
-sensibly even if an item is listed in the inclusion list multiple times, or if an item is a symlink.
+sensibly even if an item is listed in the inclusion list multiple times, if an item is a symlink,
+or if a file is already compressed.
 
 The following commands may be used in \t{src\_install} to alter these lists. It is an error to call
 any of these functions from any other phase.