diff --git a/pkgs/development/compilers/rust/rustc.nix b/pkgs/development/compilers/rust/rustc.nix
index f4004c01df22..a8ba933b52f2 100644
--- a/pkgs/development/compilers/rust/rustc.nix
+++ b/pkgs/development/compilers/rust/rustc.nix
@@ -89,6 +89,7 @@ stdenv.mkDerivation {
     rm src/test/debuginfo/limited-debuginfo.rs
     rm src/test/debuginfo/simple-struct.rs
     rm src/test/debuginfo/simple-tuple.rs
+    rm src/test/debuginfo/union-smoke.rs
     rm src/test/debuginfo/vec-slices.rs
     rm src/test/debuginfo/vec.rs