diff --git a/pkgs/build-support/writers/default.nix b/pkgs/build-support/writers/default.nix
index 3ec1796458d0..9fbc571daab4 100644
--- a/pkgs/build-support/writers/default.nix
+++ b/pkgs/build-support/writers/default.nix
@@ -237,7 +237,7 @@ let
   # makePythonWriter takes python and compatible pythonPackages and produces python script writer,
   # which validates the script with flake8 at build time. If any libraries are specified,
   # python.withPackages is used as interpreter, otherwise the "bare" python is used.
-  makePythonWriter = python: pythonPackages: name: { libraries ? [], flakeIgnore ? [] }:
+  makePythonWriter = python: pythonPackages: buildPythonPackages: name: { libraries ? [], flakeIgnore ? [] }:
   let
     ignoreAttribute = optionalString (flakeIgnore != []) "--ignore ${concatMapStringsSep "," escapeShellArg flakeIgnore}";
   in
@@ -248,7 +248,7 @@ let
       else "${python.withPackages (ps: libraries)}/bin/python"
     ;
     check = optionalString python.isPy3k (writeDash "pythoncheck.sh" ''
-      exec ${pythonPackages.flake8}/bin/flake8 --show-source ${ignoreAttribute} "$1"
+      exec ${buildPythonPackages.flake8}/bin/flake8 --show-source ${ignoreAttribute} "$1"
     '');
   } name;
 
@@ -264,7 +264,7 @@ let
   #
   #   print Test.a
   # ''
-  writePyPy2 = makePythonWriter pkgs.pypy2 pkgs.pypy2Packages;
+  writePyPy2 = makePythonWriter pkgs.pypy2 pkgs.pypy2Packages buildPackages.pypy2Packages;
 
   # writePyPy2Bin takes the same arguments as writePyPy2 but outputs a directory (like writeScriptBin)
   writePyPy2Bin = name:
@@ -282,7 +282,7 @@ let
   #   """)
   #   print(y[0]['test'])
   # ''
-  writePython3 = makePythonWriter pkgs.python3 pkgs.python3Packages;
+  writePython3 = makePythonWriter pkgs.python3 pkgs.python3Packages buildPackages.python3Packages;
 
   # writePython3Bin takes the same arguments as writePython3 but outputs a directory (like writeScriptBin)
   writePython3Bin = name:
@@ -300,7 +300,7 @@ let
   #   """)
   #   print(y[0]['test'])
   # ''
-  writePyPy3 = makePythonWriter pkgs.pypy3 pkgs.pypy3Packages;
+  writePyPy3 = makePythonWriter pkgs.pypy3 pkgs.pypy3Packages buildPackages.pypy3Packages;
 
   # writePyPy3Bin takes the same arguments as writePyPy3 but outputs a directory (like writeScriptBin)
   writePyPy3Bin = name: