diff --git a/pkgs/tools/package-management/nix/unstable.nix b/pkgs/tools/package-management/nix/unstable.nix
index 1f01f6f73af2..da70ed6bb0fb 100644
--- a/pkgs/tools/package-management/nix/unstable.nix
+++ b/pkgs/tools/package-management/nix/unstable.nix
@@ -31,6 +31,9 @@ stdenv.mkDerivation rec {
       ''
         --with-store-dir=${storeDir} --localstatedir=${stateDir}
         --with-bzip2=${bzip2.hostDrv} --with-sqlite=${sqlite.hostDrv}
+        --enable-gc
+        --with-dbi=${perlPackages.DBI}/lib/perl5/site_perl
+        --with-dbd-sqlite=${perlPackages.DBDSQLite}/lib/perl5/site_perl
         --disable-init-state
         CFLAGS=-O3 CXXFLAGS=-O3
       '';