diff --git a/fastapi/openapi/utils.py b/fastapi/openapi/utils.py
index 808646cc27216..1673d6b8664b1 100644
--- a/fastapi/openapi/utils.py
+++ b/fastapi/openapi/utils.py
@@ -49,6 +49,7 @@
         },
         "msg": {"title": "Message", "type": "string"},
         "type": {"title": "Error Type", "type": "string"},
+        "input": {"title": "Input", "type": "string"},
     },
     "required": ["loc", "msg", "type"],
 }