diff --git a/pkgs/servers/web-apps/klaus/default.nix b/pkgs/development/python-modules/klaus/default.nix
similarity index 95%
rename from pkgs/servers/web-apps/klaus/default.nix
rename to pkgs/development/python-modules/klaus/default.nix
index 81d1e57e7a04..0740cfa84bb7 100644
--- a/pkgs/servers/web-apps/klaus/default.nix
+++ b/pkgs/development/python-modules/klaus/default.nix
@@ -1,6 +1,6 @@
 { lib, python, fetchFromGitHub }:
 
-python.pkgs.buildPythonApplication rec {
+python.pkgs.buildPythonPackage rec {
   pname = "klaus";
   version = "1.2.2";
 
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index dcfc3646bcc6..cf5f480ec3a6 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -1339,7 +1339,7 @@ with pkgs;
 
   kisslicer = callPackage ../tools/misc/kisslicer { };
 
-  klaus = callPackage ../servers/web-apps/klaus { };
+  klaus = with pythonPackages; toPythonApplication klaus;
 
   lcdproc = callPackage ../servers/monitoring/lcdproc { };
 
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 9f0a0f45b12d..a3a80f998f7a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -6929,6 +6929,8 @@ in {
 
   kiwisolver = callPackage ../development/python-modules/kiwisolver { };
 
+  klaus = callPackage ../development/python-modules/klaus {};
+
   klein = callPackage ../development/python-modules/klein { };
 
   koji = callPackage ../development/python-modules/koji { };