diff --git a/pkgs/development/python-modules/scrapy/default.nix b/pkgs/development/python-modules/scrapy/default.nix
index 0bc10158095b..0cacbda728d8 100644
--- a/pkgs/development/python-modules/scrapy/default.nix
+++ b/pkgs/development/python-modules/scrapy/default.nix
@@ -98,7 +98,7 @@ buildPythonPackage rec {
     uvloop
   ];
 
-  LC_ALL = "en_US.UTF-8";
+  env.LC_ALL = "en_US.UTF-8";
 
   pytestFlags = [
     # DeprecationWarning: There is no current event loop