diff --git a/pkgs/applications/networking/flexget/default.nix b/pkgs/applications/networking/flexget/default.nix
index 143de9a36dab..cd9fe5c5a94d 100644
--- a/pkgs/applications/networking/flexget/default.nix
+++ b/pkgs/applications/networking/flexget/default.nix
@@ -44,7 +44,7 @@ python3Packages.buildPythonApplication rec {
     packaging
     psutil
     pynzb
-    PyRSS2Gen
+    pyrss2gen
     python-dateutil
     pyyaml
     rebulk
diff --git a/pkgs/development/python-modules/nikola/default.nix b/pkgs/development/python-modules/nikola/default.nix
index a254348cd02f..9ef37e156ac5 100644
--- a/pkgs/development/python-modules/nikola/default.nix
+++ b/pkgs/development/python-modules/nikola/default.nix
@@ -26,7 +26,7 @@
 , pygal
 , pygments
 , pyphen
-, PyRSS2Gen
+, pyrss2gen
 , pytestCheckHook
 , pythonOlder
 , requests
@@ -73,7 +73,7 @@ buildPythonPackage rec {
     pygal
     pygments
     pyphen
-    PyRSS2Gen
+    pyrss2gen
     requests
     ruamel-yaml
     toml
diff --git a/pkgs/development/python-modules/pyrss2gen/default.nix b/pkgs/development/python-modules/pyrss2gen/default.nix
index 4a7dc788caaa..00c823475a63 100644
--- a/pkgs/development/python-modules/pyrss2gen/default.nix
+++ b/pkgs/development/python-modules/pyrss2gen/default.nix
@@ -4,11 +4,12 @@
 }:
 
 buildPythonPackage rec {
-  pname = "PyRSS2Gen";
+  pname = "pyrss2gen";
   version = "1.1";
 
   src = fetchPypi {
-    inherit pname version;
+    pname = "PyRSS2Gen";
+    inherit version;
     sha256 = "1rvf5jw9hknqz02rp1vg8abgb1lpa0bc65l7ylmlillqx7bswq3r";
   };
 
diff --git a/pkgs/top-level/python-aliases.nix b/pkgs/top-level/python-aliases.nix
index 8b4d9db75385..49c55322b1d1 100644
--- a/pkgs/top-level/python-aliases.nix
+++ b/pkgs/top-level/python-aliases.nix
@@ -196,6 +196,7 @@ mapAliases ({
   pyroute2-nftables = throw "pyroute2 migrated back to a single package scheme in version 0.7.1"; # added 2022-07-16
   pyroute2-nslink = throw "pyroute2 migrated back to a single package scheme in version 0.7.1"; # added 2022-07-16
   pyroute2-protocols = throw "pyroute2 migrated back to a single package scheme in version 0.7.1"; # added 2022-07-16
+  PyRSS2Gen = pyrss2gen; # added 2023-02-19
   pysmart-smartx = pysmart; # added 2021-10-22
   pyspotify = throw "pyspotify has been removed because Spotify stopped supporting libspotify"; # added 2022-05-29
   pytest_6 = pytest; # added 2022-02-10
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index e4bb878cd430..110005f63938 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -8749,7 +8749,7 @@ self: super: with self; {
 
   pyrsistent = callPackage ../development/python-modules/pyrsistent { };
 
-  PyRSS2Gen = callPackage ../development/python-modules/pyrss2gen { };
+  pyrss2gen = callPackage ../development/python-modules/pyrss2gen { };
 
   pyrtlsdr = callPackage ../development/python-modules/pyrtlsdr { };