1 files changed, 4 insertions, 1 deletions
diff --git a/lib/spack/external/archspec/json/cpu/microarchitectures_schema.json b/lib/spack/external/archspec/json/cpu/microarchitectures_schema.json
index c21a3a1b37..085e5b9577 100644
--- a/lib/spack/external/archspec/json/cpu/microarchitectures_schema.json
+++ b/lib/spack/external/archspec/json/cpu/microarchitectures_schema.json
@@ -52,6 +52,9 @@
                   }
                 }
               }
+            },
+            "cpupart": {
+              "type": "string"
             }
           },
           "required": [
@@ -107,4 +110,4 @@
       "additionalProperties": false
     }
   }
-}
+}
+\ No newline at end of file