diff --git a/.pytool/Plugin/SpellCheck/cspell.base.yaml b/.pytool/Plugin/SpellCheck/cspell.base.yaml
index 92e65ec6f6..915fd17f40 100644
--- a/.pytool/Plugin/SpellCheck/cspell.base.yaml
+++ b/.pytool/Plugin/SpellCheck/cspell.base.yaml
@@ -291,6 +291,7 @@
         "unenrolling",
         "unconfigure",
         "Loongson",
-        "LOONGARCH"
+        "LOONGARCH",
+        "MPIDR"
     ]
 }