diff --git a/bzGraflow.js b/bzGraflow.js
index 44915ec..10f9844 100644
--- a/bzGraflow.js
+++ b/bzGraflow.js
@@ -326,7 +326,7 @@ class BZgraflow extends Buildoz{
             childEl.style.transform = 'none' // Important for nested subflows to position correctly
             childEl.style.willChange = ''
             childEl.style.overflow = 'auto'
-            this.fireEvent('subflowLoaded', { subflow: childEl })
+            this.fireEvent('subflowLoaded', { parentNodeId: id, subflow: childEl })
         }, { once:true })
     }