diff --git a/pkgs/development/python-modules/opytimark/default.nix b/pkgs/development/python-modules/opytimark/default.nix
index 542c9042c771..69eb61f795bf 100644
--- a/pkgs/development/python-modules/opytimark/default.nix
+++ b/pkgs/development/python-modules/opytimark/default.nix
@@ -8,7 +8,7 @@
 }:
 
 buildPythonPackage rec {
-  pname = "opytimizer";
+  pname = "opytimark";
   version = "1.0.8";
   format = "setuptools";