diff --git a/pkgs/development/python-modules/beaker/default.nix b/pkgs/development/python-modules/beaker/default.nix
index 58f7515c10d6..b55b8ce93c69 100644
--- a/pkgs/development/python-modules/beaker/default.nix
+++ b/pkgs/development/python-modules/beaker/default.nix
@@ -20,7 +20,7 @@
 }:
 
 buildPythonPackage rec {
-  pname = "Beaker";
+  pname = "beaker";
   version = "1.11.0";
 
   # The pypy release do not contains the tests