diff --git a/pkgs/development/python-modules/eigenpy/default.nix b/pkgs/development/python-modules/eigenpy/default.nix
index 8797618041c4..701d729e85d8 100644
--- a/pkgs/development/python-modules/eigenpy/default.nix
+++ b/pkgs/development/python-modules/eigenpy/default.nix
@@ -2,13 +2,21 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+
+  # nativeBuildInputs
   cmake,
   doxygen,
+  graphviz,
+  scipy,
+
+  # buildInputs
   boost,
+
+  # propagatedBuildInputs
   eigen,
   jrl-cmakemodules,
   numpy,
-  scipy,
+
 }:
 
 buildPythonPackage rec {
@@ -40,6 +48,7 @@ buildPythonPackage rec {
   nativeBuildInputs = [
     cmake
     doxygen
+    graphviz
     scipy
   ];
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index bfb8c27718d7..edc13191d773 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4375,7 +4375,9 @@ self: super: with self; {
 
   eheimdigital = callPackage ../development/python-modules/eheimdigital { };
 
-  eigenpy = callPackage ../development/python-modules/eigenpy { };
+  eigenpy = callPackage ../development/python-modules/eigenpy {
+    inherit (pkgs) graphviz; # need the `dot` program, not the python module
+  };
 
   einops = callPackage ../development/python-modules/einops { };