diff -up /usr/lib/python3.9/site-packages/productmd/treeinfo.py.dist /usr/lib/python3.9/site-packages/productmd/treeinfo.py
--- /usr/lib/python3.9/site-packages/productmd/treeinfo.py.dist	2021-02-08 17:21:48.000000000 +0900
+++ /usr/lib/python3.9/site-packages/productmd/treeinfo.py	2022-10-16 18:22:56.382801311 +0900
@@ -245,6 +245,8 @@ class Release(BaseProduct):
         elif self.name.startswith("CentOS"):
             self.name = "CentOS"
             self.short = "CentOS"
+        elif self.name.startswith("Rocky"):
+            self.short = "Rocky"
         else:
             self.short = None