diff --git a/pkgs/by-name/np/npth/package.nix b/pkgs/by-name/np/npth/package.nix
index 16e386e72143..646102b031a0 100644
--- a/pkgs/by-name/np/npth/package.nix
+++ b/pkgs/by-name/np/npth/package.nix
@@ -34,7 +34,6 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "New GNU Portable Threads Library";
-    mainProgram = "npth-config";
     longDescription = ''
       This is a library to provide the GNU Pth API and thus a non-preemptive
       threads implementation.