diff --git a/docs/contribution/50-reference/2-extensions.mdx b/docs/contribution/50-reference/2-extensions.mdx
index 33f69e2..8127714 100644
--- a/docs/contribution/50-reference/2-extensions.mdx
+++ b/docs/contribution/50-reference/2-extensions.mdx
@@ -17,6 +17,7 @@ For more information about the individual attributes, see [which information an
       "id",
       "contributorId",
       "name",
+      "subTitle",
       "description",
       "support",
       "state",
@@ -41,6 +42,21 @@ For more information about the individual attributes, see [which information an
         description: "Name of the extension",
         example: "Example Extension",
       },
+      subTitle: {
+        type: "object",
+        description: "A brief description of the extension",
+        required: ["de"],
+        properties: {
+          de: {
+            type: "string",
+            example: "Erweitere das mStudio"
+          }
+          en: {
+            type: "string",
+            example: "Extend the mStudio"
+          }
+        }
+      },
       description: {
         type: "string",
         description:
diff --git a/i18n/de/docusaurus-plugin-content-docs/current/contribution/50-reference/2-extensions.mdx b/i18n/de/docusaurus-plugin-content-docs/current/contribution/50-reference/2-extensions.mdx
index ea8745b..e3a06a6 100644
--- a/i18n/de/docusaurus-plugin-content-docs/current/contribution/50-reference/2-extensions.mdx
+++ b/i18n/de/docusaurus-plugin-content-docs/current/contribution/50-reference/2-extensions.mdx
@@ -17,6 +17,7 @@ Für weitere Informationen zu den einzelnen Attributen siehe [Aus welchen Inform
       "id",
       "contributorId",
       "name",
+      "subTitle",
       "description",
       "support",
       "state",
@@ -41,6 +42,21 @@ Für weitere Informationen zu den einzelnen Attributen siehe [Aus welchen Inform
         description: "Name der Extension",
         example: "Example Extension",
       },
+      subTitle: {
+        type: "object",
+        description: "Eine kurze Beschreibung der Extension.",
+        required: ["de"],
+        properties: {
+          de: {
+            type: "string",
+            example: "Erweitere das mStudio"
+          },
+          en: {
+            type: "string",
+            example: "Extend the mStudio"
+          }
+        },
+      },
       description: {
         type: "string",
         description: