diff --git a/runcoms/zprofile b/runcoms/zprofile
index 642a5c7..7118770 100644
--- a/runcoms/zprofile
+++ b/runcoms/zprofile
@@ -33,6 +33,7 @@ fi
 # Paths
 #
 
+# Ensure path arrays do not contain duplicates.
 typeset -gU cdpath fpath mailpath path
 
 # Set the the list of directories that cd searches.