diff --git a/data/address-formats.json b/data/address-formats.json
index 0e3f01b7a..418fd7def 100644
--- a/data/address-formats.json
+++ b/data/address-formats.json
@@ -41,7 +41,7 @@
         },
         {
             "countryCodes": ["jp"],
-            "format": [["province", "county"], ["city", "suburb", "quarter"], ["neighbourhood", "block_number", "housenumber"]]
+            "format": [["postcode", "province", "county"], ["city", "suburb", "quarter"], ["neighbourhood", "block_number", "housenumber"]]
         }
     ]
 }