diff --git a/flake.nix b/flake.nix
index 48da04a..aa3aec0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -99,11 +99,9 @@
         # Patch symlink_file in lib.rs to remove existing destination first.
         (final: prev: {
           rustc = prev.rustc.overrideAttrs (old: {
-            postPatch =
-              (old.postPatch or "")
-              + ''
-                sed -i 's|if !self.config.dry_run() { symlink_file(src.as_ref(), link.as_ref())|if !self.config.dry_run() { let _ = std::fs::remove_file(link.as_ref()); symlink_file(src.as_ref(), link.as_ref())|' src/bootstrap/src/lib.rs
-              '';
+            postPatch = (old.postPatch or "") + ''
+              sed -i 's|if !self.config.dry_run() { symlink_file(src.as_ref(), link.as_ref())|if !self.config.dry_run() { let _ = std::fs::remove_file(link.as_ref()); symlink_file(src.as_ref(), link.as_ref())|' src/bootstrap/src/lib.rs
+            '';
           });
         })
       ];