diff --git a/packages/embeds/embed-core/src/embed.ts b/packages/embeds/embed-core/src/embed.ts
index 72785fdb8d..99210b962e 100644
--- a/packages/embeds/embed-core/src/embed.ts
+++ b/packages/embeds/embed-core/src/embed.ts
@@ -689,6 +689,8 @@ class CalApi {
 
     if (__prerender) {
       this.preloadedModalUid = uid;
+    } else {
+      this.modalUid = uid;
     }
 
     if (typeof config.iframeAttrs === "string" || config.iframeAttrs instanceof Array) {