diff --git a/CHANGELOG.md b/CHANGELOG.md
index f023220c..903c7f69 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 For a full diff see [`2.44.0...main`][2.44.0...main].
 
+### Changed
+
+- Updated `schema.json` ([#1405]), by [@ergebnis-bot]
+
 ## [`2.44.0`][2.44.0]
 
 For a full diff see [`2.43.0...2.44.0`][2.43.0...2.44.0].
@@ -1251,6 +1255,7 @@ For a full diff see [`81bc3a8...0.1.0`][81bc3a8...0.1.0].
 [#1349]: https://github.com/ergebnis/composer-normalize/pull/1349
 [#1363]: https://github.com/ergebnis/composer-normalize/pull/1363
 [#1381]: https://github.com/ergebnis/composer-normalize/pull/1381
+[#1405]: https://github.com/ergebnis/composer-normalize/pull/1405
 
 [@core23]: https://github.com/core23
 [@dependabot]: https://github.com/dependabot
diff --git a/resource/schema.json b/resource/schema.json
index a388021f..baa81caf 100644
--- a/resource/schema.json
+++ b/resource/schema.json
@@ -371,6 +371,15 @@
                     "example": false,
                     "default": true
                 },
+                "build-path": {
+                    "type": [
+                        "string",
+                        "null"
+                    ],
+                    "description": "If specified, this is the subdirectory that will be used to build the extension instead of the root of the project.",
+                    "example": "my-extension-source",
+                    "default": null
+                },
                 "configure-options": {
                     "type": "array",
                     "description": "These configure options make up the flags that can be passed to ./configure when installing the extension.",