diff --git a/circt.nix b/circt.nix
index f6732c7..687a17f 100644
--- a/circt.nix
+++ b/circt.nix
@@ -95,9 +95,6 @@ in stdenv.mkDerivation {
 
   preCheck = ''
     patchShebangs bin/*.py
-  '' + lib.optionalString enableLLHD ''
-    # llhd-sim link-dep on this, but expect in install dir.
-    ninja install-circt-llhd-signals-runtime-wrappers
   '';
 
   # Manually install bits that don't have install rules yet.