diff --git a/.gitignore b/.gitignore
index aec2565..534f481 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,9 +10,6 @@ result
 sds.nims
 /.update.timestamp
 
-# Nimbus Build System
-nimbus-build-system.paths
-
 # Nimble packages
 /vendor/.nimble
 nimble.develop
diff --git a/nix/default.nix b/nix/default.nix
index 945bad5..ea03472 100644
--- a/nix/default.nix
+++ b/nix/default.nix
@@ -58,12 +58,6 @@ in stdenv.mkDerivation rec {
     "USE_SYSTEM_NIM=1"
   ];
 
-  configurePhase = ''
-    patchShebangs . vendor/nimbus-build-system > /dev/null
-    make nimbus-build-system-paths
-    make nimbus-build-system-nimble-dir
-  '';
-
   preBuild = ''
     ln -s sds.nimble sds.nims
   '';