diff --git a/schemas/ingest-spans.v1.schema.json b/schemas/ingest-spans.v1.schema.json
index 8c537f49..44ee6662 100644
--- a/schemas/ingest-spans.v1.schema.json
+++ b/schemas/ingest-spans.v1.schema.json
@@ -144,7 +144,7 @@
       }
     },
     "AttributeValue": {
-      "type": "object",
+      "type": ["null", "object"],
       "properties": {
         "type": {
           "type": "string",