diff --git a/schemas/bashly.json b/schemas/bashly.json
index 28514d62..0c0160fe 100644
--- a/schemas/bashly.json
+++ b/schemas/bashly.json
@@ -470,6 +470,15 @@
         "URL to download from"
       ]
     },
+    "help-header-override-property": {
+      "title": "help_header_override",
+      "description": "Bash code (or function call) that will be executed at the beginning of the help message\nhttps://bashly.dev/configuration/command/#help-header-override",
+      "type": "string",
+      "minLength": 1,
+      "examples": [
+        "generate_ascii_art_logo"
+      ]
+    },
     "args-property": {
       "title": "args",
       "description": "Arguments of the current script or sub-command\nhttps://bashly.dev/configuration/command/#args",
@@ -847,6 +856,9 @@
         "help": {
           "$ref": "#/definitions/help-property"
         },
+        "help_header_override": {
+          "$ref": "#/definitions/help-header-override-property"
+        },
         "args": {
           "$ref": "#/definitions/args-property"
         },
@@ -924,6 +936,9 @@
     "help": {
       "$ref": "#/definitions/help-property"
     },
+    "help_header_override": {
+      "$ref": "#/definitions/help-header-override-property"
+    },
     "args": {
       "$ref": "#/definitions/args-property"
     },
diff --git a/support/schema/bashly.yml b/support/schema/bashly.yml
index 1066053b..251f8aea 100644
--- a/support/schema/bashly.yml
+++ b/support/schema/bashly.yml
@@ -405,6 +405,15 @@ definitions:
     minLength: 1
     examples:
       - URL to download from
+  help-header-override-property:
+    title: help_header_override
+    description: |-
+      Bash code (or function call) that will be executed at the beginning of the help message
+      https://bashly.dev/configuration/command/#help-header-override
+    type: string
+    minLength: 1
+    examples:
+      - generate_ascii_art_logo
   args-property:
     title: args
     description: |-
@@ -739,6 +748,8 @@ definitions:
         $ref: '#/definitions/sub-command-alias-property'
       help:
         $ref: '#/definitions/help-property'
+      help_header_override:
+        $ref: '#/definitions/help-header-override-property'
       args:
         $ref: '#/definitions/args-property'
       flags:
@@ -787,6 +798,8 @@ properties:
     $ref: '#/definitions/name-property'
   help:
     $ref: '#/definitions/help-property'
+  help_header_override:
+    $ref: '#/definitions/help-header-override-property'
   args:
     $ref: '#/definitions/args-property'
   flags: