diff --git a/src/view/Office.vue b/src/view/Office.vue
index 6f7a507968..bd05b22625 100644
--- a/src/view/Office.vue
+++ b/src/view/Office.vue
@@ -54,7 +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">
+			<input name="host_session_id" :value="formData.hostSessionID" type="hidden">
 		</form>
 		<iframe :id="iframeId"
 			ref="documentFrame"