diff --git a/src/rhsmlib/facts/collection.py b/src/rhsmlib/facts/collection.py
index 7afb8e42d..a6e2472cc 100644
--- a/src/rhsmlib/facts/collection.py
+++ b/src/rhsmlib/facts/collection.py
@@ -22,7 +22,7 @@ class FactsDict(collections.abc.MutableMapping):
     """A dict for facts that ignores items in 'graylist' on compares."""
 
     GRAYLIST = set(
-        ["cpu.cpu_mhz", "lscpu.cpu_mhz"]
+        ["cpu.cpu_mhz", "lscpu.cpu_mhz", "proc_cpuinfo.common.cpu_mhz", "lscpu.cpu(s)_scaling_mhz"]
     )
 
     def __init__(self, *args, **kwargs):