diff --git a/pkgs/tools/misc/parallel/wrapper.nix b/pkgs/tools/misc/parallel/wrapper.nix
index b85dfc56f3d6..0240f1ac9e9e 100644
--- a/pkgs/tools/misc/parallel/wrapper.nix
+++ b/pkgs/tools/misc/parallel/wrapper.nix
@@ -1,13 +1,10 @@
-{ parallel, makeWrapper , runCommand
-, perlPackages
-, extraPerlPackages ?
-    with perlPackages; [ DBI DBDPg DBDSQLite DBDCSV TextCSV ]
-}:
+{ lib, runCommand, makeWrapper, parallel, perlPackages
+, extraPerlPackages ? with perlPackages; [ DBI DBDPg DBDSQLite DBDCSV TextCSV ]
+, willCite ? false }:
 
-runCommand "parallel-full" {
-  nativeBuildInputs = [ makeWrapper ];
-  } ''
-      mkdir -p $out/bin
-      makeWrapper ${parallel}/bin/parallel $out/bin/parallel \
-        --set PERL5LIB "${perlPackages.makeFullPerlPath extraPerlPackages}"
-  ''
+runCommand "parallel-full" { nativeBuildInputs = [ makeWrapper ]; } ''
+  mkdir -p $out/bin
+  makeWrapper ${parallel}/bin/parallel $out/bin/parallel \
+    --set PERL5LIB "${perlPackages.makeFullPerlPath extraPerlPackages}" \
+    ${lib.optionalString willCite "--add-flags --will-cite"}
+''