diff --git a/packages/py-mmcif-pdbx/package.py b/packages/py-mmcif-pdbx/package.py
index 1b23d1c5eba0b6d17897c7f46138c57ce40fa101..7b53dfae39eb590d6bd82b0c06b8e907dec236d8 100644
--- a/packages/py-mmcif-pdbx/package.py
+++ b/packages/py-mmcif-pdbx/package.py
@@ -7,7 +7,7 @@
 from spack import *
 
 
-class MmcifPdbx(PythonPackage):
+class PyMmcifPdbx(PythonPackage):
     """
     This is yet another PyPI package for
     http://mmcif.wwpdb.org/dbx-mmcif-home-page.html.