diff --git a/var/spack/repos/builtin/packages/nvtx/package.py b/var/spack/repos/builtin/packages/nvtx/package.py
index 03ad2517646..d1a04d9c85c 100644
--- a/var/spack/repos/builtin/packages/nvtx/package.py
+++ b/var/spack/repos/builtin/packages/nvtx/package.py
@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
 
+from spack.build_systems.python import PythonPipBuilder
 from spack.package import *