diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index 5cfc59772a3..b04414b11c1 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -2969,7 +2969,7 @@ let
      pname = "Code-TidyAll";
      version = "0.78";
      src = fetchurl {
-       url = mirror://cpan/authors/id/D/DR/DROLSKY/Code-TidyAll-0.78.tar.gz;
+       url = "mirror://cpan/authors/id/D/DR/DROLSKY/Code-TidyAll-0.78.tar.gz";
        sha256 = "1dmr6zkgcnc6cam204f00g5yly46cplbn9k45ginw02rv10vnpij";
      };
      propagatedBuildInputs = [ CaptureTiny ConfigINI FileWhich Filepushd IPCRun3 IPCSystemSimple ListCompare ListSomeUtils LogAny Moo ScopeGuard SpecioLibraryPathTiny TextDiff TimeDate TimeDurationParse ];