diff --git a/overlays/android.nix b/overlays/android.nix
index c7d59ad75b..5225943cd7 100644
--- a/overlays/android.nix
+++ b/overlays/android.nix
@@ -27,7 +27,7 @@ final: prev: prev.lib.optionalAttrs prev.stdenv.hostPlatform.isAndroid ({
   });
 
   numactl = prev.numactl.overrideAttrs (attrs: {
-     patches = attrs.patches + [ ./patches/numactl-2.0.14-no-librt.patch ];
+     patches = (attrs.patches or []) ++ [ ./patches/numactl-2.0.14-no-librt.patch ];
   });
 
   zlib = prev.zlib.override { shared = false; static = true; };