diff --git a/pkgs/misc/misc.nix b/pkgs/misc/misc.nix
index 85959f66a7f..15ea4f8bcc1 100644
--- a/pkgs/misc/misc.nix
+++ b/pkgs/misc/misc.nix
@@ -16,10 +16,6 @@ in
 	    [ pkgs.ruby l.chronic l.sup ];
 	};
       }
-
-    Warning: Using this function, it is possible to install packages
-    into one profile that have file collisions, and these will not be
-    detected.
   */
   collection = {list, name} : runCommand "collection-${name}" {} ''
     mkdir -p $out/nix-support