diff --git a/observable-slim.js b/observable-slim.js
index aaf72b0..d103511 100644
--- a/observable-slim.js
+++ b/observable-slim.js
@@ -221,6 +221,7 @@ var ObservableSlim = (function() {
 				changes.push({
 					"type":"delete"
 					,"target":target
+					,"parent":path.map(o => o.property).slice(1)
 					,"property":property
 					,"newValue":null
 					,"previousValue":previousValue[property]
@@ -298,6 +299,7 @@ var ObservableSlim = (function() {
 					changes.push({
 						"type":type
 						,"target":target
+						,"parent":path.map(o => o.property).slice(1)
 						,"property":property
 						,"newValue":value
 						,"previousValue":receiver[property]