diff --git a/pkgs/by-name/ca/caprine/package.nix b/pkgs/by-name/ca/caprine/package.nix
index ad6b054a84b1..18161241ebc4 100644
--- a/pkgs/by-name/ca/caprine/package.nix
+++ b/pkgs/by-name/ca/caprine/package.nix
@@ -20,7 +20,7 @@ buildNpmPackage rec {
     hash = "sha256-hBGsqOqKMHNy2SNw1kHCQq1lPDd2S36L5pdKgD2O8FA=";
   };
 
-  ELECTRON_SKIP_BINARY_DOWNLOAD = "1";
+  env.ELECTRON_SKIP_BINARY_DOWNLOAD = "1";
 
   npmDepsHash = "sha256-FgOHuMMUX92VHF6hdznoi7bhO/27t6+l038kmpqjctQ=";