diff --git a/pkgs/by-name/uc/uclibc-ng/package.nix b/pkgs/by-name/uc/uclibc-ng/package.nix
index 24de1084cc53..d512a4a571b3 100644
--- a/pkgs/by-name/uc/uclibc-ng/package.nix
+++ b/pkgs/by-name/uc/uclibc-ng/package.nix
@@ -77,7 +77,7 @@ stdenv.mkDerivation (finalAttrs: {
   };
 
   configurePhase = ''
-    make defconfig
+    make defconfig ARCH=${stdenv.hostPlatform.linuxArch}
     ${configParser}
     cat << EOF | parseconfig
     ${nixConfig}