diff --git a/README.md b/README.md
index 5e6b6cf..023b90c 100644
--- a/README.md
+++ b/README.md
@@ -222,6 +222,7 @@ $ echo "TypeError: unsupported operand type" | errorfix fix -f json
         "tags": ["type", "type-error"]
       },
       "matched_text": "TypeError: unsupported operand type",
+      "captured_variables": {},
       "suggested_fix": "Check the types of your operands."
     }
   ]