diff --git a/pkgs/applications/misc/audio/soxr/default.nix b/pkgs/applications/misc/audio/soxr/default.nix
index e8f22a86b2a..dd2e560c00f 100644
--- a/pkgs/applications/misc/audio/soxr/default.nix
+++ b/pkgs/applications/misc/audio/soxr/default.nix
@@ -8,6 +8,8 @@ stdenv.mkDerivation rec {
     sha256 = "0xf2w3piwz9gfr1xqyrj4k685q5dy53kq3igv663i4f4y4sg9rjl";
   };
 
+  outputs = [ "out" "doc" ]; # headers are just two and very small
+
   preConfigure = if stdenv.isDarwin then ''
     export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:"`pwd`/build/src
   '' else ''