diff --git a/pkgs/by-name/pl/plfit/package.nix b/pkgs/by-name/pl/plfit/package.nix
index 90f103aea0e3..c0fd37234e2d 100644
--- a/pkgs/by-name/pl/plfit/package.nix
+++ b/pkgs/by-name/pl/plfit/package.nix
@@ -3,11 +3,14 @@
   fetchFromGitHub,
   lib,
   llvmPackages,
+  withPython ? false,
   python ? null,
   stdenv,
   swig,
 }:
 
+assert withPython -> python != null;
+
 stdenv.mkDerivation (finalAttrs: {
   pname = "plfit";
   version = "1.0.1";
@@ -19,7 +22,7 @@ stdenv.mkDerivation (finalAttrs: {
     hash = "sha256-0JrPAq/4yzr7XbxvcnFj8CKmMyZT05PkSdGprNdAsJA=";
   };
 
-  postPatch = lib.optionalString (python != null) ''
+  postPatch = lib.optionalString withPython ''
     substituteInPlace src/CMakeLists.txt \
       --replace-fail ' ''${Python3_SITEARCH}' ' ${placeholder "out"}/${python.sitePackages}' \
       --replace-fail ' ''${Python3_SITELIB}' ' ${placeholder "out"}/${python.sitePackages}'
@@ -28,7 +31,7 @@ stdenv.mkDerivation (finalAttrs: {
   nativeBuildInputs = [
     cmake
   ]
-  ++ lib.optionals (python != null) [
+  ++ lib.optionals withPython [
     python
     swig
   ];
@@ -36,7 +39,7 @@ stdenv.mkDerivation (finalAttrs: {
   cmakeFlags = [
     "-DPLFIT_USE_OPENMP=ON"
   ]
-  ++ lib.optionals (python != null) [
+  ++ lib.optionals withPython [
     "-DPLFIT_COMPILE_PYTHON_MODULE=ON"
   ];
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 72cbab75b289..5ab11ab15070 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3438,10 +3438,6 @@ with pkgs;
 
   tautulli = python3Packages.callPackage ../servers/tautulli { };
 
-  plfit = callPackage ../by-name/pl/plfit/package.nix {
-    python = null;
-  };
-
   inherit (callPackage ../development/tools/pnpm { })
     pnpm_8
     pnpm_9
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f1642cfce460..a00111cb5d7a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -12360,7 +12360,12 @@ self: super: with self; {
 
   plexwebsocket = callPackage ../development/python-modules/plexwebsocket { };
 
-  plfit = toPythonModule (pkgs.plfit.override { inherit (self) python; });
+  plfit = toPythonModule (
+    pkgs.plfit.override {
+      withPython = true;
+      inherit (self) python;
+    }
+  );
 
   plink = callPackage ../development/python-modules/plink { };