diff --git a/python-cinderlib.spec b/python-cinderlib.spec
index 10f9e8c6950d346b72daf84f9b38ffc3d039794c..ecc52a2d77149335b03cd8c0a4e66dbbe296fc85 100644
--- a/python-cinderlib.spec
+++ b/python-cinderlib.spec
@@ -1,4 +1,4 @@
-%global __requires_exclude python3.9dist(cinder)
+%global __requires_exclude python3\\.9dist\\(cinder\\)
 %global _empty_manifest_terminate_build 0
 Name:           python-cinderlib
 Version:        4.0.0