diff --git a/var/spack/repos/builtin/packages/py-pyserial/package.py b/var/spack/repos/builtin/packages/py-pyserial/package.py
index 0bbf9826f8d..289e87712b4 100644
--- a/var/spack/repos/builtin/packages/py-pyserial/package.py
+++ b/var/spack/repos/builtin/packages/py-pyserial/package.py
@@ -25,7 +25,7 @@
 from spack import *
 
 
-class PyPyserial(Package):
+class PyPyserial(PythonPackage):
     """Python Serial Port Extension"""
 
     homepage = "https://github.com/pyserial/pyserial"