diff --git a/pkgs/lib/default.nix b/pkgs/lib/default.nix
index a549120b676..42edc300d28 100644
--- a/pkgs/lib/default.nix
+++ b/pkgs/lib/default.nix
@@ -56,6 +56,8 @@ rec {
   # Map and concatenate the result.
   concatMap = f: list: concatLists (map f list);
 
+  concatMapStrings = f: list: pkgs.lib.concatStrings (map f list);
+  
 
   # Place an element between each element of a list, e.g.,
   # `intersperse "," ["a" "b" "c"]' returns ["a" "," "b" "," "c"].