diff --git a/src/compiler/nir/nir_lower_io_to_vector.c b/src/compiler/nir/nir_lower_io_to_vector.c
index e49fda5d587..e17f6ddb158 100644
--- a/src/compiler/nir/nir_lower_io_to_vector.c
+++ b/src/compiler/nir/nir_lower_io_to_vector.c
@@ -677,6 +677,11 @@ nir_vectorize_tess_levels_impl(nir_function_impl *impl)
       }
    }
 
+   if (progress)
+      nir_metadata_preserve(impl, nir_metadata_block_index | nir_metadata_dominance);
+   else
+      nir_metadata_preserve(impl, nir_metadata_all);
+
    return progress;
 }