diff --git a/pkgs/applications/misc/orca/default.nix b/pkgs/applications/misc/orca/default.nix
index f52215fa4a2..c47a8c2b2a6 100644
--- a/pkgs/applications/misc/orca/default.nix
+++ b/pkgs/applications/misc/orca/default.nix
@@ -7,16 +7,14 @@
 , speechd, brltty, setproctitle, gst_all_1, gst-python
 }:
 
-let
+buildPythonApplication rec {
   pname = "orca";
   version = "3.30.1";
-in buildPythonApplication rec {
-  name = "${pname}-${version}";
 
   format = "other";
 
   src = fetchurl {
-    url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${name}.tar.xz";
+    url = "mirror://gnome/sources/${pname}/${stdenv.lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
     sha256 = "1b9s69frjmghjm1p9a4rrvknl9m0qlwr7mr4lsxkvjnblhsnw0g7";
   };
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index e65be0be0b2..5de7754bc9a 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18645,6 +18645,7 @@ in
   opera = callPackage ../applications/networking/browsers/opera {};
 
   orca = python3Packages.callPackage ../applications/misc/orca {
+    inherit (pkgs) pkgconfig;
     inherit (gnome3) yelp-tools;
   };