diff --git a/schema/config-vm.json b/schema/config-vm.json
index 54fae7af0..21cb970ce 100644
--- a/schema/config-vm.json
+++ b/schema/config-vm.json
@@ -73,11 +73,9 @@
                     },
                     "iomems": {
                         "type": "array",
-                        "items": [
-                            {
-                                "$ref": "defs-vm.json#/definitions/IOMemEntryFormat"
-                            }
-                        ]
+                        "items": {
+                            "$ref": "defs-vm.json#/definitions/IOMemEntryFormat"
+                        }
                     },
                     "irqs": {
                         "$ref": "defs.json#/definitions/ArrayOfUint32"
diff --git a/schema/defs.json b/schema/defs.json
index 329b61d29..453375420 100644
--- a/schema/defs.json
+++ b/schema/defs.json
@@ -78,7 +78,7 @@
         "ArrayOfUint32": {
             "type": "array",
             "items": {
-                "$ref": "#definitions/uint32"
+                "$ref": "#/definitions/uint32"
             }
         },
         "FileMode": {