diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 5a5457b6fd4..c9dbc2a5a6a 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -9836,7 +9836,7 @@ let
     version = "1.03";
     pname = "IO-Pager";
     src = fetchurl {
-      url = mirror://cpan/authors/id/J/JP/JPIERCE/IO-Pager-1.03.tgz;
+      url = "mirror://cpan/authors/id/J/JP/JPIERCE/IO-Pager-1.03.tgz";
       sha256 = "13mmykrb391584wkw907zrmy4hg1fa9hj3zw58whdq5bjc66r1mc";
     };
     propagatedBuildInputs = [ pkgs.more FileWhich TermReadKey ]; # `more` used in tests