diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1d9d353..5872b7e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+### Added
+
+- Added `descriptionLong` to manifest schema
+
 ## [0.1.2] - 2023-10-18
 
 ### Added
diff --git a/schemas/manifest.schema.json b/schemas/manifest.schema.json
index fb5ff6e..1617bcc 100644
--- a/schemas/manifest.schema.json
+++ b/schemas/manifest.schema.json
@@ -61,6 +61,9 @@
     "description": {
       "$ref": "https://raw.githubusercontent.com/micro-lc/compose-toolkit/main/schemas/mia.schema.json#/definitions/localized-text"
     },
+    "descriptionLong": {
+      "$ref": "https://raw.githubusercontent.com/micro-lc/compose-toolkit/main/schemas/mia.schema.json#/definitions/localized-text"
+    },
     "definitions": {
       "type": "object",
       "default": {},