diff --git a/pkgs/os-specific/linux/uclibc/default.nix b/pkgs/os-specific/linux/uclibc/default.nix
index 32872349c67..3f86332fcdd 100644
--- a/pkgs/os-specific/linux/uclibc/default.nix
+++ b/pkgs/os-specific/linux/uclibc/default.nix
@@ -76,7 +76,7 @@ stdenv.mkDerivation {
     ${if cross != null then stdenv.lib.attrByPath [ "uclibc" "extraConfig" ] "" cross else ""}
     $extraCrossConfig
     EOF
-    yes "" | make oldconfig
+    make oldconfig </dev/null
   '';
 
   hardeningDisable = [ "stackprotector" ];