diff --git a/src/document.js b/src/document.js
index 1ddc440ed9..e1d2d50b23 100644
--- a/src/document.js
+++ b/src/document.js
@@ -22,6 +22,7 @@ import '../css/document.scss'
 import axios from '@nextcloud/axios'
 import { spawnDialog } from '@nextcloud/dialogs'
 import SaveAs from './components/Modal/SaveAs.vue'
+import { getCapabilities } from './services/capabilities.ts'
 
 const PostMessages = new PostMessageService({
 	parent: window.parent,
@@ -169,6 +170,8 @@ const documentsMain = {
 				+ '<input name="theme" value="' + getCollaboraTheme() + '" type="hidden"/>'
 				// buy product for new customer users
 				+ '<input name="buy_product" value="https://nextcloud.com/pricing" type="hidden"/>'
+				+ '<input name="host_session_id" value="nextcloud ' + OC.config.version
+					+ ' - richdocuments ' + getCapabilities().version + '" type="hidden"/>'
 				+ '</form>'
 
 			// iframe that contains the Collabora Online Viewer
@@ -229,6 +232,8 @@ const documentsMain = {
 				+ '<input name="theme" value="' + getCollaboraTheme() + '" type="hidden"/>'
 				// buy product for new customer users
 				+ '<input name="buy_product" value="https://nextcloud.com/pricing" type="hidden"/>'
+				+ '<input name="host_session_id" value="nextcloud ' + OC.config.version
+					+ ' - richdocuments ' + getCapabilities().version + '" type="hidden"/>'
 				+ '</form>'
 
 			// iframe that contains the Collabora Online
diff --git a/src/view/Office.vue b/src/view/Office.vue
index ea39a9c5e3..28744ddc81 100644
--- a/src/view/Office.vue
+++ b/src/view/Office.vue
@@ -54,6 +54,7 @@
 			<input name="css_variables" :value="formData.cssVariables" type="hidden">
 			<input name="theme" :value="formData.theme" type="hidden">
 			<input name="buy_product" value="https://nextcloud.com/pricing" type="hidden">
+			<input name="host_session_id" value="formData.hostSessionID" type="hidden">
 		</form>
 		<iframe :id="iframeId"
 			ref="documentFrame"
@@ -188,6 +189,7 @@ export default {
 				uiDefaults: getUIDefaults(),
 				cssVariables: generateCSSVarTokens(),
 				theme: getCollaboraTheme(),
+				hostSessionID: 'nextcloud ' + OC.config.version + ' - richdocuments ' + getCapabilities().version
 			},
 		}
 	},