diff --git a/pkgs/build-support/libredirect/default.nix b/pkgs/build-support/libredirect/default.nix
index 8f7df3386d14..b5eb21e5ba4b 100644
--- a/pkgs/build-support/libredirect/default.nix
+++ b/pkgs/build-support/libredirect/default.nix
@@ -27,7 +27,7 @@ else stdenv.mkDerivation rec {
 
   outputs = ["out" "hook"];
 
-  libName = "libredirect" + stdenv.targetPlatform.extensions.sharedLibrary;
+  libName = "libredirect" + stdenv.hostPlatform.extensions.sharedLibrary;
 
   buildPhase = ''
     runHook preBuild